Exits decide how much you lose when a trade fails and how much you keep when it works, which is why Van Tharp ranked them far above entries in importance, and he had an unusual proof: both he and professional trader Tom Basso tested systems that entered positions on the equivalent of a coin flip, and with sensible exits and 1% position sizing, the random-entry systems still made money over a decade of test data. Entries, the part of trading retail culture obsesses over, contributed nothing; exits and sizing did everything. This is part 8 of Artha's 10-part series on Tharp's Super Trader (McGraw-Hill, 2009); the research and concepts are his, the explanations and rupee examples are ours, and this is education, not advice. The series starts at the five steps overview.
Chapter 1What was the random-entry experiment?
The idea surfaced at a workshop Tharp taught with Tom Basso, where a participant remarked that with good exits and sizing you could probably profit even with random entries. Basso went and tested it on his own exits and position sizing, and found it made money. Tharp then replicated it independently: a system trading 10 commodity markets over 10 years, always in the market, direction chosen by coin flip on each re-entry, an exit trailing at three times the 20-day average true range, 1% of equity risked per position, and Rs-equivalent charges of $100 per trade for slippage and commissions.
The result, in both tests, was consistent profit, not spectacular, and with uncomfortable drawdowns, but profit, despite the system surrendering every possible edge at entry and paying heavy costs. The mechanism is the golden rule of trading operating alone: the wide trailing stop cut losing positions before they grew and let the occasional strong trend run for months. If exits plus sizing can carry a coin flip to profitability, a trader's development effort is pointed at the wrong end of the trade when it goes almost entirely into entries.
Chapter 2Why are setups less important than traders think?
Because a setup, the pattern or condition that gets you interested in a trade, is just one component of a complete system, yet most traders treat it as the whole system. Tharp's example was the famous CANSLIM method, which most people can recite as its seven setup criteria; in his view the setups are the least important part of why that method works, compared with its exit discipline and the market conditions it operates in. Setups feel like the system because they are the exciting, decision-rich part; the money, however, is managed at the exit.
This inversion also explains what Tharp called the myth of stock selection: the public believes success means picking the right stock, an idea marketed relentlessly by media and tip culture. In India this belief funds an entire industry of Telegram tips, YouTube targets, and "multibagger" research, while SEBI's studies show most active derivative traders losing money. The random-entry result says the belief is not just overrated but nearly backwards.
Chapter 3What is the initial stop, and how wide should it be?
The initial stop, which Tharp called the abort exit, is the pre-decided price at which a new trade is declared wrong and closed; it defines your 1R, as covered in part 5. Choosing its distance is a real trade-off with no free option:
- Wide stops, such as three times the 20-day ATR, or the 25% trailing level Tharp suggested for long-term stock holders, keep you in positions through ordinary noise, so you are "right" more often, but each loss is a large 1R and your winners produce smaller R-multiples.
- Tight stops make each 1R small, so winners can reach large multiples, but you get stopped out often and must accept being wrong on most attempts.
A worked contrast (illustrative numbers): a trader buys a breakout at Rs 500. With a stop at Rs 450 under the consolidation, a rally to Rs 600 earns Rs 100 against Rs 50 risked, a 2R gain, with a high chance of success. With a stop at Rs 495, the same rally is a 20R gain, but suppose it takes four attempts and three -1R stop-outs before one works: the sequence still nets +17R. Neither choice is "correct"; they express different beliefs and suit different systems, which is why Tharp insisted the system must fit the trader.
Chapter 4How do trailing stops let profits run?
A trailing stop follows the price at a fixed distance, moving only in your favour, never backwards. In Tharp's random-entry test the trail was three times the 20-day ATR measured from the close: as price advanced, the stop advanced; when volatility contracted, the stop tightened; and when price fell, the stop stayed put until hit. One simple rule simultaneously limited losses, survived sideways noise, and rode trends for as long as they lasted.
The volatility linkage is the elegant part. A fixed-rupee or fixed-percentage trail treats a calm large-cap and a wild small-cap identically; an ATR-based trail automatically gives each instrument room proportional to its own normal movement, so the stop is hit by genuine reversals rather than routine wiggles.
Chapter 5What other exits does a complete system need?
Tharp catalogued exits by purpose, and a complete system usually combines several, with whichever stop is closest to the market being the live one:
- Loss-reduction exits beyond the initial stop, tightening risk once a trade has had its chance.
- Profit-maximising exits, typically wide trails designed to stay with a trend.
- Profit-protection exits, which tighten sharply once a target is reached. His worked illustration: trail at three times ATR normally, but after the position reaches +4R, shrink the trail to 1.6 times ATR, so a sudden reversal still banks roughly +3.5R while the tighter trail leaves the door open to +10R and beyond.
- Psychological exits, taken because the trader's state or circumstances make holding unwise, such as before a long absence, a concept his coaching stories about unattended positions make vivid.
Notice what is absent from the list: exiting because you are bored, because news is loud, or because a small profit "might disappear." Every legitimate exit maps to a purpose written into the system; anything else is a rule violation, food for part 9 on mistakes.
How do exits interact with position sizing?
The initial stop defines R, and position sizing converts R into share quantity, so exits and sizing are two halves of one risk mechanism. This also answers the natural objection to tight stops, that small R means small rupee profits: if you risk a fixed 1% of equity per trade, a +7R outcome adds about 7% to the account regardless of whether R was Rs 5 or Rs 50 per share. Sizing normalises the rupee impact; the exit structure determines the R-multiples available.
The combination is what made the random-entry system safe to run: any single coin-flip position could only cost about 1% of equity, and the trailing exit ensured the rare trend contributed many R. Neither component alone would have survived.
How Nora helps
Nora can explain each exit type with fresh examples, compute what different stop widths would have meant in R-multiples on historical prices you provide, and help you draft the exit section of your trading business plan as a learning exercise, education about mechanics, never a signal or a recommendation.
App · coming soonWhat this means for you
Tharp's exit research relocates the trader's real job: not predicting where a stock will go, but deciding in advance exactly where you will get off, in loss and in profit. A trader who knows their abort exit, their trailing method, and their profit-protection rule before entry has a complete trade; a trader with only a compelling entry has a lottery ticket. The next article turns to the force that unravels even complete systems: the mistakes traders make against their own rules, and the discipline routines that stop them.
Series credit: this series is based on concepts from Super Trader: Make Consistent Profits in Good and Bad Markets by Van K. Tharp, Ph.D. (McGraw-Hill, 2009). Full credit for the framework belongs to Dr. Tharp and the Van Tharp Institute.