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General Category => The Investor Challenge => Topic started by: Patrick on January 06, 2014, 08:39:42 am

Title: The 2014 Challenge has begun!
Post by: Patrick on January 06, 2014, 08:39:42 am
Go forth and multiply... earnings!
Title: Re: The 2014 Challenge has begun!
Post by: Moneypenny on January 06, 2014, 09:28:15 am
Aye aye Captain.  ;D
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 06, 2014, 04:10:39 pm
Shoot. Missed my chance to get in today. The stock I wanted to buy shot up too quickly and now at 4%.  :wall:
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 06, 2014, 05:06:53 pm
 :wtf: How could Griffin have bought OAO at 135 when it was trading at 165 at 16.17.44? It was at 135 just after 09.30 this morning.
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 06, 2014, 05:10:20 pm
:wtf: How could Griffin have bought OAO at 135 when it was trading at 165 at 16.17.44? It was at 135 just after 09.30 this morning.

Not sure, qriffin?
Title: Re: The 2014 Challenge has begun!
Post by: aae on January 06, 2014, 05:11:27 pm
it went to 170 at 16h13 and the games prices are 15 minutes delayed, so he has real time pricing, saw the move and bought the shares while the games prices were still delayed ;)

http://www.sharenet.co.za/v3/quickshare.php?scode=OAO
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 06, 2014, 05:32:49 pm
Here are the trades.
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 06, 2014, 05:54:20 pm
the 13.50 trades were simultanous, so the lowest prices was registered as last trade price on the jse pricing info
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 06, 2014, 06:31:38 pm
Opportunistic but what can we do? Will have to live with this.
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 06, 2014, 06:59:00 pm
Looking into the share, there seems to be no reason, with their daily trade history and such taken into account.

so presume there could be rumours or a bit of manipulation in progress again.

There are guys out there that do trading for a living.

One of the reasons this game should be limited to the top 200 on capitalization.

There could be gems out there that are going to shoot the moon out, but lets be realistic.

split the game, investors challenge, gambler challenge, less in the spirit of the game players O:-)
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 06, 2014, 07:11:05 pm
being able to play the game delayed and know real time pricing has but a different dimension on the sell feature.

Some stocks do weird things during a day
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 07, 2014, 07:26:30 am
being able to play the game delayed and know real time pricing has but a different dimension on the sell feature.

Very true. That was a concern of mine about selling in the first place. The trick now is to try limit it. I'd like the game to be as close to reality as possible, after all, it was planned to be a learning environment. Here are some options:
-Have a limit on buying for 30 minutes after a sale (let the system catch up on any price weirdness), and likewise a limit on selling 30 minutes after a buy.
-Have a review system, let moderators review a trade and if it's not realistic to roll it back.
-Have a public review system, record appeals and make 3 appeals an auto rollback.

Just some thoughts, any more from the users?
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 07, 2014, 09:25:37 am
The moment the administrators allowed "selling on demand" was the moment the competition was opened to traders, who would hunt down low volume but high volatility shares. If you apply real life principles then you can't buy shares after the daily auction, you can only buy the following day at your elected price (if the counter gets to your price reserve). Again I advocate that selling should only be allowed once per quarter (maybe keep to calendar quarters to start with), and if anyone sells outside of these conditions the trade is reversed. Also the tax on sale should be removed from the capital amount that the competitor has to invest - maybe deduct tax at CGT rates of say 13% and that will also make competitors think twice about selling part of their portfolios
Title: Re: The 2014 Challenge has begun!
Post by: SuperVan on January 07, 2014, 11:37:14 am
Patrick,

Just a thought, would it be able to have a transaction cost line in each portfolio? i think it would be interesting to see the amount spent by a trader, especially when they are doing badly.

thanks
Title: Re: The 2014 Challenge has begun!
Post by: aae on January 07, 2014, 12:55:32 pm
and griffin sells at 11.29, price dropped on jse at 11.11.

not very sporting
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 01:24:00 pm
and griffin sells at 11.29, price dropped on jse at 11.11.

not very sporting

very unsporting! :wtf: I can't help but wonder, if that is also the tactics he employed when buying last year..... ::)
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 07, 2014, 01:37:24 pm
and griffin sells at 11.29, price dropped on jse at 11.11.

not very sporting

very unsporting! :wtf: I can't help but wonder, if that is also the tactics he employed when buying last year..... ::)
I don't believe griffin is unsporting at all - he saw a gap in the process/system/and rules and exploited it. The only way you get a robust system that caters for the majority is letting lose some mavericks to test the system and find the gaps. I get live prices on my broker system and I too watch the price being used by this system and buy in when there is a difference in price, and I will do the same when selling - its called playing the odds
Title: Re: The 2014 Challenge has begun!
Post by: aae on January 07, 2014, 01:40:52 pm
its called cheating or maybe insider trading ;)
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 07, 2014, 02:19:46 pm
Bundu has a point, I need to try close loopholes, I have a plan...
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 07, 2014, 04:13:47 pm
I can also do that if I wanted to. Example is AND that dropped over 15% with one trade a few minutes ago. I set an alert on my broker site that sends me an SMS when it goes back up and immediately buy it here at the old price. Perhaps I should try it.  :TU:
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 05:06:20 pm
and griffin sells at 11.29, price dropped on jse at 11.11.

not very sporting

very unsporting! :wtf: I can't help but wonder, if that is also the tactics he employed when buying last year..... ::)
I don't believe griffin is unsporting at all - he saw a gap in the process/system/and rules and exploited it. The only way you get a robust system that caters for the majority is letting lose some mavericks to test the system and find the gaps. I get live prices on my broker system and I too watch the price being used by this system and buy in when there is a difference in price, and I will do the same when selling - its called playing the odds

well it's not like it was an extremely skillful move and I think most of us have realized this for some time - another gap is obviously when the data does not update, often on Mondays - in my book it's like using illegal performance enhancers in sport - very unsporting
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 05:36:15 pm
Maybe buying should be restricted till after the market closes and before it opens
Title: Re: The 2014 Challenge has begun!
Post by: CompTester on January 07, 2014, 06:00:08 pm
Maybe buying should be restricted till after the market closes and before it opens

Not to worry, the new update will solve that too  :)
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 07, 2014, 06:18:32 pm
Maybe buying should be restricted till after the market closes and before it opens

Not to worry, the new update will solve that too  :)

I hope you going to roll back that sneaky trade.
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 07, 2014, 06:43:29 pm
I am totally against rolling back the transaction - in the context of the competition I recommended that we split the competition into two parts those who wanted to enter the competition as investors and those who wanted to enter as traders. This recommendation was not carried and now because we want to run a single competition we want to unwind a trade where a "trader" has been opportunistic. I hold CSB (Cashbuild) in my real portfolio and towards end of day the price dropped to R 155 a move of R 5.05 from yesterday. I too could be opportunistic and buy the shares after hours and wait for it to return to yesterdays close and thus show a gain of R 5.05 and more as it got as high as R 160. At this time of the year the fund managers are all playing games having window dressed their year end results with almost all time highs - and now the reality sets in. You could also potentially make significant gains if you bought BEL (Bell); YRK (York); POY (Poynting); PSG (PSG) after hours tonight as surely these share prices will recover during the course of tomorrow. To my mind the only time a trade can be unwound is if there is a trade at the competition level but not at the market level, thus if no trade on the market then the trade can't happen in the competition.
We need to realise that the essence of this competition is to end in the number 1 slot, how it is achieved is incidental, and if there are loopholes in the competition then we need to get consensus to close those loopholes without damaging a competitors situation adversely   
Title: Re: The 2014 Challenge has begun!
Post by: CompTester on January 07, 2014, 06:47:17 pm
in the context of the competition I recommended that we split the competition into two parts those who wanted to enter the competition as investors and those who wanted to enter as traders. This recommendation was not carried

It may still be carried out. I could easily have 3 leader boards, one for traders (who sell at profit), one for investors, and the current one.
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 06:58:27 pm
is this now a find the loophole and exploit competition.

Read the guidelines and stick to the spirit of the competition.

A few people  trying to exploit for gains are ruining it all and making things less enjoyable as it is supposed to be.

What satisfaction can be gotten from winning something and cheating.

Thus far the only thing that has happened is that griffin has managed to negate his win from year into a cheater won status.

so who cares if he won anymore, he is now labelled as a cheater in my books. Lance Armstrong comes to mind.

If he had a point to prove he could have used a different alias for it and the just informed Patrick.

Patrick tries something good and many people enjoy the game but then come the spoilers and fuck up everything



Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 07:00:25 pm
in the context of the competition I recommended that we split the competition into two parts those who wanted to enter the competition as investors and those who wanted to enter as traders. This recommendation was not carried

It may still be carried out. I could easily have 3 leader boards, one for traders (who sell at profit), one for investors, and the current one.

and a seperate one for those playing against the spirit of the game :D
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 07:08:40 pm
in the context of the competition I recommended that we split the competition into two parts those who wanted to enter the competition as investors and those who wanted to enter as traders. This recommendation was not carried

It may still be carried out. I could easily have 3 leader boards, one for traders (who sell at profit), one for investors, and the current one.

and a seperate one for those playing against the spirit of the game :D

kan jy nie lees jou donner?  ;) :D
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 07:09:48 pm
ja ok sorry ;D
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 07:11:27 pm
I am totally against rolling back the transaction - in the context of the competition I recommended that we split the competition into two parts those who wanted to enter the competition as investors and those who wanted to enter as traders. This recommendation was not carried and now because we want to run a single competition we want to unwind a trade where a "trader" has been opportunistic. I hold CSB (Cashbuild) in my real portfolio and towards end of day the price dropped to R 155 a move of R 5.05 from yesterday. I too could be opportunistic and buy the shares after hours and wait for it to return to yesterdays close and thus show a gain of R 5.05 and more as it got as high as R 160. At this time of the year the fund managers are all playing games having window dressed their year end results with almost all time highs - and now the reality sets in. You could also potentially make significant gains if you bought BEL (Bell); YRK (York); POY (Poynting); PSG (PSG) after hours tonight as surely these share prices will recover during the course of tomorrow. To my mind the only time a trade can be unwound is if there is a trade at the competition level but not at the market level, thus if no trade on the market then the trade can't happen in the competition.
We need to realise that the essence of this competition is to end in the number 1 slot, how it is achieved is incidental, and if there are loopholes in the competition then we need to get consensus to close those loopholes without damaging a competitors situation adversely   

the problem with griffins trade, is that he knowingly did something that is not possible in real life, except for those that can buy at historic prices  ;)

I'm assuming the idea of this competition, is to mimic 'real life' - if not, I'll excuse myself
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 07:31:21 pm
Going to cause the end of this competition.

Nobody plays with the unsporting type, not even children.

Just restrict the competition to the top 100 companies as the other competitions do.  No manipulation and covers all the shares any investor will buy.

Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 07, 2014, 07:47:50 pm
I agree with Bundu and Tgg. Not with the gambler and wannabe cheater gcr. At this stage I have not even bothered to enter the competition and will not do so. I cannot compete against cheaters.
This is purely an INVESTING for CLIENTS in a MANAGED ACCOUNT and not TRADING. If you want to trade then go to a trading website. Leave us investors alone to do our investing.
To avoid scalping, the only way to go is to use closing or opening prices only. Same as ShareNet does. The starting gun has been fired and should be fired again to get all back to the start point.

 
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 08:24:28 pm
If I recollect correctly, the selling option idea was one of mine but that came around to enable one to realign a portfolio during the competition should circumstances
change not to trade and cheat.

Couple of examples:

I buy BTI, midyear, smokes get banned, as least I can sell and buy something else.
I buy Gold shares and the gold price goes for a loop like last year, at least I can sell and buy something else.
I buy construction and it does not perform, but the gold price goes through the roof, I can sell my construction and buy gold shares.
CML gets to high and Think it has reached its limit for the year, be able so sell and buy something with growth potential.

I don,t think it was ever meant to be a trading option, just a portfolio realign option.

Maar dan is daar altyd mense wat the dam onder se hoender se poepol uitruk.

If you can,t play the game in the spirit of things, go get your rocks off somewhere else.

Or get reported and eliminated with your ip blocked


Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 08:54:24 pm
Jeez! you are guys rough!  ;) :D Orca, I see you have 2 smites  :D   but 13 applauds, so humanity exists  :TU:

I agree mostly - trading should be allowed, or we should have two competitions - Trading and Investing - we just have to figure out the rules to prevent spoil-sports from doing things that are unsporting - closing prices are probably the safest bet, but not all that realistic, as often during the evening, things happen in the USA, that we all know will make some shares shoot up or down - if the 'buy' or 'sell' can be delayed for the time that our prices are delayed, that could work, but I'm not sure of the complexities involved  ::)

Maybe Patrick should do a poll with options that he can incorporate without too much hassle?
Title: Re: The 2014 Challenge has begun!
Post by: CompTester on January 07, 2014, 09:50:32 pm
Ok, just to set everyone's mind at ease, I'll have the new insider trade blocker running by market opening tomorrow. It'll be a surprise until then, but I quite like it. It's been hell to code so far, so I guess I have to send thanks for keeping the grey matter in shape  ;D

Then tomorrow qriffin is going to help me test and fine tune it, and tomorrow evening all his trades will be wiped clean. Everyone cool?

 8)
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 09:54:04 pm
Ok, just to set everyone's mind at ease, I'll have the new insider trade blocker running by market opening tomorrow. It'll be a surprise until then, but I quite like it. It's been hell to code so far, so I guess I have to send thanks for keeping the grey matter in shape  ;D

Then tomorrow qriffin is going to help me test and fine tune it, and tomorrow evening all his trades will be wiped clean. Everyone cool?

 8)

let's see how it goes - fanks for your efforts  :TU:
Title: Re: The 2014 Challenge has begun!
Post by: tgg78703 on January 07, 2014, 09:56:15 pm
plus a 2 shot penalty to griffin and gcr for having such unsporting thoughts :))

cool
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 10:35:32 pm
plus a 2 shot penalty to griffin and gcr for having such unsporting thoughts :))

cool

loep slaap nou  :D
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 07, 2014, 11:53:00 pm
And it's done. Bonus points to the first person to figure out what's changed  >:D

The update will still allow trading, but discourage very short term trading, and put a complete stop to inside trading... Unless of course someone has real inside info on companies, in which case send me a pm  :LHST:
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 07, 2014, 11:57:46 pm
And it's done. Bonus points to the first person to figure out what's changed  >:D

The update will still allow trading, but discourage very short term trading, and put a complete stop to inside trading... Unless of course someone has real inside info on companies, in which case send me a pm  :LHST:
:TU:
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 08, 2014, 12:38:11 am
I agree with Bundu and Tgg. Not with the gambler and wannabe cheater gcr. At this stage I have not even bothered to enter the competition and will not do so. I cannot compete against cheaters.
This is purely an INVESTING for CLIENTS in a MANAGED ACCOUNT and not TRADING. If you want to trade then go to a trading website. Leave us investors alone to do our investing.
To avoid scalping, the only way to go is to use closing or opening prices only. Same as ShareNet does. The starting gun has been fired and should be fired again to get all back to the start point.

 
Orca - you really need to watch your mouth especially after 6.30 p.m.  :-[
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 08, 2014, 12:54:27 am
I agree with Bundu and Tgg. Not with the gambler and wannabe cheater gcr. At this stage I have not even bothered to enter the competition and will not do so. I cannot compete against cheaters.
This is purely an INVESTING for CLIENTS in a MANAGED ACCOUNT and not TRADING. If you want to trade then go to a trading website. Leave us investors alone to do our investing.
To avoid scalping, the only way to go is to use closing or opening prices only. Same as ShareNet does. The starting gun has been fired and should be fired again to get all back to the start point.

 
Orca - you really need to watch your mouth especially after 6.30 p.m.  :-[

 :D :D :D :D :D :D :D :laugh: :LHST:
Title: Re: The 2014 Challenge has begun!
Post by: SuperVan on January 08, 2014, 04:15:29 pm
I see Griffin is gone.
Title: Re: The 2014 Challenge has begun!
Post by: jaDEB on January 08, 2014, 04:16:11 pm
Frikiin hell, here I was wondering if the site is closed. No body is posting, till I find you all here.

Do you want me to stop the car, do you.... , it is just a game for us to learn. It is not like you can win a bar 1 or something.

The same happended to other site, and see where is their comp. gone, nada.

Now, go back to other forum and post stuff so we can make real money.



Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 08, 2014, 04:22:55 pm
I see Griffin is gone.

seems like his portfolio has been rolled back to R100k - if so, it's just fair :TU:
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 08, 2014, 05:14:05 pm
No hard feelings Griffin. You exposed a loophole.  :TU:
Now to get back to the other stuff jaDeb's chasing us to.
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 08, 2014, 05:25:41 pm
I agree with Bundu and Tgg. Not with the gambler and wannabe cheater gcr. At this stage I have not even bothered to enter the competition and will not do so. I cannot compete against cheaters.
This is purely an INVESTING for CLIENTS in a MANAGED ACCOUNT and not TRADING. If you want to trade then go to a trading website. Leave us investors alone to do our investing.
To avoid scalping, the only way to go is to use closing or opening prices only. Same as ShareNet does. The starting gun has been fired and should be fired again to get all back to the start point.

 
Orca - you really need to watch your mouth especially after 6.30 p.m.  :-[

 :D :D :D :D :D :D :D :laugh: :LHST:

Oops. Sorry. Problem is that the sun only sets at around 8pm here in CT this time of the year.What are you and Bundu doing here at 1am??? Hic. Burp.
Title: Re: The 2014 Challenge has begun!
Post by: Orca on January 08, 2014, 05:29:56 pm
Hey. Patric. Where is NewGold (GLD)? That is a very good index to follow. You have NewGold Plat.
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 08, 2014, 07:50:33 pm
I agree with Bundu and Tgg. Not with the gambler and wannabe cheater gcr. At this stage I have not even bothered to enter the competition and will not do so. I cannot compete against cheaters.
This is purely an INVESTING for CLIENTS in a MANAGED ACCOUNT and not TRADING. If you want to trade then go to a trading website. Leave us investors alone to do our investing.
To avoid scalping, the only way to go is to use closing or opening prices only. Same as ShareNet does. The starting gun has been fired and should be fired again to get all back to the start point.

 
Orca - you really need to watch your mouth especially after 6.30 p.m.  :-[

 :D :D :D :D :D :D :D :laugh: :LHST:

Oops. Sorry. Problem is that the sun only sets at around 8pm here in CT this time of the year.What are you and Bundu doing here at 1am??? Hic. Burp.
For me - just getting ready for bed  ???
Title: Re: The 2014 Challenge has begun!
Post by: Moneypenny on January 08, 2014, 07:53:44 pm
 :wtf: is going on here?
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 09, 2014, 08:30:06 am
Hey. Patric. Where is NewGold (GLD)? That is a very good index to follow. You have NewGold Plat.

Added... When scanning for etf's I only looked at shares with a code longer than 3 characters  O:-)
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 09, 2014, 08:40:18 am
Patrick,

Just a thought, would it be able to have a transaction cost line in each portfolio? i think it would be interesting to see the amount spent by a trader, especially when they are doing badly.

thanks

Done
Title: Re: The 2014 Challenge has begun!
Post by: SuperVan on January 09, 2014, 09:28:58 am
Griffin,

Well done for rolling back your portfolio, I think it shows good spotrsmanship on your side :TU:

On a lighter note, have you seen how many portfolios you have ruined with your OANDO buy :) Nearly 70% of the bottom 10 jumped on the band wagon after seeing that share jump 30% in one day, only to have the price fall by 30% again ::)
Title: Re: The 2014 Challenge has begun!
Post by: MrMafia on January 09, 2014, 12:54:51 pm
I see Oando has been removed from this site now.  Will it still update in my holdings?  Will it be added back?
Title: Re: The 2014 Challenge has begun!
Post by: Patrick on January 09, 2014, 03:08:54 pm
I see Oando has been removed from this site now.  Will it still update in my holdings?  Will it be added back?

Yes, everything works except buying more.
Title: Re: The 2014 Challenge has begun!
Post by: Awtron on January 10, 2014, 09:01:53 am
Why isn't Central Rand Gold still available to buy (newbie question maybe?)
Title: Re: The 2014 Challenge has begun!
Post by: Bundu on January 10, 2014, 10:27:57 am
CRD trades too low volumes and infrequently

edit: and if you look at CRD at this moment

Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 10, 2014, 11:04:57 am
I see Poynting (POY) has been removed from the list of shares one can buy. To my knowledge they trade quite frequently and their price is running around the R 2.18 to R 2.20 mark, and their all time high has been R 2.35.
Can't for the life of me see the logic in removing it as a counter when it was in the system last year.
I hold some of these shares in my personal portfolio and bought at an all in cost of 82 cents against todays price of R 2.18 and some 43,000 shares have traded today - not big numbers when compared to the top 20 companies, but sufficient numbers to make a market
Title: Re: The 2014 Challenge has begun!
Post by: gcr on January 10, 2014, 03:08:32 pm
From this thread and the other on frequency of traded stock, here is something to consider.
The objective of the competitors is to win the competition at year end; the objective of the moderators is to ensure everyone gets a fair shake at winning and that unjustified trades are taken out of the equation as the specific counter may not have sufficient trades.
This is an option to be considered
1) All shares are included on the list of shares one is permitted to purchase/sell
2) Orders to buy/sell are subject to sufficient volumes of the counter being bought/sold having traded on the day. If insufficient volumes then the order is rolled back totally or the buy/sell order is limited to the volumes that went through that day. This infers that the competitor can not buy or sell shares in a low volume counter greater than the shares traded on that day. Thus the buy/sell order would take up the maximum number of shares and the unexecuted volume would revert to cash in the competitors trading account
3) All sales effected are subject to 40% tax and are to be lost in the ether of the sale and this tax is to be taken at the time of the sale. Thus those people who buy and hold their portfolio to the end of the competition would not incur any taxation, but those who buy and sell frequently will suffer capital losses each time they sell. Competitors would then look very carefully at the net result of selling out of a counter either fully or partially. 

The competition was set up as an investment competition and not as a trading competition, but it does allow those who want to "trade" to do so it just means the tax will hurt them when they sell more frequently
This is not the only solution but is an option for the competitors to consider and then decide the best way forward >:D