WD Gann Rules: His 24 Never-Failing Rules Explained

Search for WD Gann’s rules, and you will find one list above all: his 24 Never-Failing Rules. Most traders read the list once, agree to every line, and go on trading as before.

The list does little when you only read it. Gann gave it a place in a larger plan and a way to use it, and sites that copy the list alone leave both out. This post restores that context and shows what the rules are for.

A List Written at the End of a Career

Gann printed the 24 rules on page 16 of 45 Years in Wall Street. He signed that book in July 1949, in his 72nd year, so the list rests on a lifetime of trading. In the foreword, he traces his rules back to a booklet he wrote in 1910, and he says each later book added what new experience taught him.

Title page of 45 Years in Wall Street by William D. Gann, with the heading Twenty-Four Never-Failing Rules

Twelve Rules Find the Trade, Twenty-Four Manage It

The 24 rules do not open the chapter. Chapter II begins with twelve other rules, and those twelve deal with the market itself: how to determine the trend, where double and triple bottoms give buying points, how far prices move in percentages, and how long moves last in time.

Only after those twelve does Gann give the 24. By placing them after the market rules, he signals that the reader should study both sets as parts of one method and read the next rules in that light.

Gann’s chapter has two sets of rules: 12 rules to find the trade and 24 rules to manage it

That order shows what the 24 rules are for. The twelve rules tell you when and where to trade. The twenty-four rules tell you how to handle the trade once you take it. In short, Gann divides the method between timing and management: one set finds the trade, the other protects it. Together, they complete the method.

The 24 Rules in Five Groups

Gann printed the rules as one long list. Read closely, they do five jobs. The rule numbers below are Gann’s own, and the groups below show how they connect. Taken together, they show the list isn’t random advice but a system for protecting the trader. The first group starts with capital protection.

1. Protect Your Capital

Rule 1: Divide your capital into ten parts. Never risk more than one part on a single trade.
Rule 2: Place a stop-loss order when you make the trade, 3 to 5 points away.
Rule 3: Never overtrade.
Rule 8: Spread your risk over four or five stocks.
Rule 11: After a run of profits, move part of the money into a surplus account for emergencies.
Rule 16: Never cancel a stop-loss order once you place it.

Gann puts capital first, and he gives the reason a page later: while you still have capital, the market will always offer a new opportunity. His example is plain. A trader who starts with $1,000 should risk no more than $100 on the first trade. That is why the rules above come first.

Many traders drop the stop because it sometimes takes them out at the exact top or bottom. Gann answers that complaint with a count. The stop gets you out wrong about once in ten trades, and the other nine times it saves you from a larger loss. He also names two causes for more than 90 per cent of Wall Street failures: trading without a stop and overtrading.

2. Protect Your Profits

Rule 4: Never let a profit run into a loss. Once a trade shows 3 points of profit, raise the stop so the trade cannot lose.
Rule 10: Don’t close a trade without a good reason. Follow it with a stop.
Rule 15: Avoid small profits and big losses.
Rule 20: Add to a position only when the stock is active and has crossed a resistance level.

These four rules turn on one idea: profits must outgrow losses. That principle leads to Gann’s next point later in the chapter. He tells traders not to risk 3 to 5 points for a possible gain of 3 to 5 points, because on average that trade does not pay. He would wait for a trade that offers more than it risks. The next group shows how that discipline depends on trend.

3. Trade With the Trend

Rule 5: Never buy or sell unless your charts show you the trend.
Rule 18: Be as ready to sell short as to buy.
Rule 19: Never buy only because a price is low, or sell only because it is high.
Rule 23: Don’t change your position without a definite sign of a change in trend.

This group ties the 24 rules to the twelve before them. It explains why a trader who merely thinks the market is near a top or bottom will be wrong seven times out of ten. Gann’s cure is to wait for a definite sign that the trend has turned. His trend and time rules provide that sign, which is why Rule 5 sends you back to your charts. That sets up the next set of practical rules.

4. Choose and Enter Trades With Care

Rule 7: Trade active stocks and leave slow ones alone.
Rule 9: Buy and sell at the market. Don’t hold out for a fixed price.
Rule 12: Never buy a stock only for its dividend.
Rule 21: Pyramid on the buying side in stocks with few shares outstanding. Sell short the ones with many.

These rules keep a trader in markets that can repay the risk. That matters because a slow market gives even a correct trade little room to pay. The next group turns from market choice to trader discipline.

5. Control Yourself

Rule 6: When in doubt, get out. Don’t enter in doubt either.
Rule 13: Never average a loss.
Rule 14: Don’t leave the market out of impatience or enter it out of anxiety.
Rule 17: Don’t get in and out too often.
Rule 22: Never hedge a losing position. Take the loss and wait.
Rule 24: Don’t increase your trading after a long run of success.

Gann calls the human element the trader’s greatest weakness. He writes that he can give the best rules in the world, and a trader can still lose because hope, fear, and impatience stop him from following them. That is why six of the 24 rules guard against exactly that. Rule 24 also guards against a danger few traders expect: Gann saw the risk in a winning run as clearly as in a losing one. This leads into what he meant by ‘Never-Failing.’

Gann’s 24 Never-Failing Rules sorted into five groups, with Gann’s own rule numbers

What “Never-Failing” Means

The title can sound like a profit guarantee. Gann’s own chapter rules out that reading. He tells readers at the start that any trade can be wrong, and that they must know what to do when it is.

So the claim is narrower, and more useful. In Gann’s account, the rules hold when the trader follows them. The losses come when the trader stops following them. That is the real promise of the chapter: discipline, not certainty. That idea leads naturally to how the rules can be used today.

Applying 1949 Rules to Today’s Markets

Some figures in the list belong to their time and market. A stop of 3 to 5 points suited the stocks Gann traded in 1949. That figure will not suit an index future, a currency pair or a low-priced share.

Gann handled this problem himself. He printed the same list for commodity traders in How to Make Profits in Commodities, and there he changed the figures to fit grain and cotton. Stops became cents for grain and points for cotton, and four or five stocks became two or three commodities. The rules on capital, stops, trend and self-control stayed almost word for word.

Gann’s own edit gives a modern trader the method. Keep the principle of each rule, and set its number to the market you trade. That is the point of the list: preserve the rule’s purpose, then adapt the figure. With that in mind, the next section shows how to use the rules.

Putting the Rules to Work

Gann ends the list with an easy-to-skip instruction. Before you make a trade, check that it breaks none of the 24 rules. After a trade closes at a loss, go through the list, find the rule you broke, and don’t repeat that mistake.

Here is one way to put that instruction to work:

Write the 24 rules on a single page and keep it where you trade.
Before each trade, read down the page. If the trade breaks a rule, fix it or pass.
After each losing trade, note the broken rule number beside it in your records.
After twenty trades, count the numbers. The rule that appears most often is the one costing you money.

Used this way, the list becomes a record of your own weak points. That fits Gann’s view that a trader’s own acts cause his losses, not the market. It also sets up the final point on why he credited both his rules and his forecast.

Why Gann Credited Both His Rules and His Forecast

In his foreword, Gann looks back at the market top of May 1946 and writes: “My rules and my forecast called the top of this advance.” He credits both, and the chapter’s two sets of rules show why. A forecast without rules leaves the trade unprotected. Rules without a forecast leave the trader with nothing to act on. Together, they complete the framework: a forecast identifies the move, and rules manage it.

Want to dig deeper into Gann’s work? Have a look at our WD Gann courses. And if you’re not sure which one fits you, email me. I reply personally.