Glossary term
Alternative Uptick Rule
The alternative uptick rule is SEC Rule 201, a short-sale price test that activates after a covered stock falls sharply in one day.
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What Is the Alternative Uptick Rule?
The alternative uptick rule is SEC Rule 201 of Regulation SHO. It restricts the price at which short sales may be executed after a covered stock experiences significant downward price pressure.
The rule is designed as a circuit-breaker-style price test. It does not ban short selling entirely, but it limits short sales from being executed at or below the current national best bid while the restriction is active.
Key Takeaways
- The alternative uptick rule is SEC Rule 201 of Regulation SHO.
- It is triggered when a covered stock declines by the specified threshold from the prior day's close.
- Once triggered, short sales generally must be priced above the national best bid.
- The restriction applies for the rest of the day and the following trading day.
- The rule is different from the old permanent uptick rule that applied more broadly.
How Rule 201 Works
When a covered security drops by 10% or more from the prior day's closing price, Rule 201's circuit breaker is triggered. After that, short sale orders in that security are subject to a price test. The order generally cannot be executed unless the price is above the current national best bid.
The restriction is temporary and security-specific. It applies to the affected stock rather than the entire market, and it is tied to the trading day in which the trigger occurs plus the following trading day.
Rule 201 in Practice
Feature | Practical meaning |
|---|---|
Trigger | A covered stock falls by the rule's threshold from the prior close. |
Restriction | Short sales generally must be priced above the national best bid. |
Duration | Remainder of the trigger day and the next trading day. |
Scope | Applies to covered securities, not every asset or market. |
What Traders Often Misread
The alternative uptick rule does not mean a stock must rise, that short sellers are blocked entirely, or that a short squeeze is guaranteed. It changes how short sales may be priced while the restriction is active.
The rule can affect order routing, liquidity, and short-sale execution mechanics, but it does not override ordinary supply and demand. Long sellers can still sell, buyers can still step away, and the stock can still decline.
Market Structure Context
Rule 201 is one piece of short-sale regulation. It sits alongside locate requirements, close-out rules, order-marking requirements, exchange systems, and broker-dealer compliance procedures.
For investors, the practical value is interpretive. Seeing a stock on a short-sale restriction list can explain why some short-sale orders face pricing limits, but it is not by itself a bullish or bearish signal.
The Bottom Line
The alternative uptick rule is a temporary short-sale price test triggered by a sharp one-day decline in a covered stock. It limits certain short-sale executions, but it does not eliminate short selling or determine where the stock trades next.