• The uptick rule (originally Rule 10a‑1) required short sales to be executed at a price above the last different price (“on an uptick”) to prevent short sellers from accelerating declines.
– The SEC removed the original uptick rule in 2007 and adopted an alternative short‑sale restriction (Rule 201) in 2010 that activates a short‑sale price test restriction (SSTPR) when a stock falls 10% or more in one day.
– Under Rule 201, once triggered, short sales in the affected security may be executed only at a price above the national best bid for the remainder of the day and the following trading day.
– There are limited exemptions (e.g., certain futures and market‑making activities); broker/dealer procedures and Reg SHO locate/close‑out rules still apply.
Sources: Investopedia (uptick rule) and SEC (short selling restrictions).
What the Uptick Rule Was — Historical Background
– Origin: The Securities Exchange Act of 1934 authorized an uptick rule to curb abusive short selling. Exchanges implemented it by 1938 as Rule 10a‑1.
– Purpose: Prevent short sellers from piling on a falling stock by allowing new short sales only at prices above the last different trade. That reduced potentially abusive “bear raids” that could accelerate price declines and undermine investor confidence.
– Repeal and replacement: The original rule was removed by the SEC in 2007. After the 2008 crisis and industry review, the SEC adopted an alternative short‑sale restriction (Rule 201) in 2010 as a targeted, threshold‑triggered mechanism.
How the Alternative Uptick Rule (Rule 201) Works
– Trigger: A “price decline” test is triggered when a security listed on a national securities exchange falls 10% or more from the previous day’s closing price.
– Restriction: Once triggered, short sales in that security may be executed only at a price that is above the national best bid (i.e., “above the best bid”).
– Duration: The restriction remains in force for the rest of the trading day on which the 10% decline occurred and the entire trading day following the trigger (often called the “duration of price test restriction”).
– Scope: The rule applies broadly to equity securities listed on national exchanges and also applies to short sales executed off‑exchange.
– Rationale: The rule aims to allow existing long holders to exit positions and to reduce the ability of short sellers to intensify a fast, disorderly decline.
Practical implications for traders and investors
– Shorting becomes more difficult during sharp one‑day declines because trades must be executed above the best bid.
– The rule is designed to protect liquidity and give buyers time to step in; it is not a permanent ban on short selling.
– Institutional and professional market makers may still have certain exemptions or regulatory allowances for bona fide market‑making activity; retail investors typically are subject to the SSTPR when it applies.
Exemptions and related rules
– Futures and some security futures: In practice, many futures contracts are not subject to traditional uptick constraints because futures markets are highly liquid; limited exemptions apply when a futures contract is “owned by the seller” under SEC definitions.
– Market makers and exchange specialists: Certain market‑making functions and bona fide hedging activities can be treated differently under SEC and exchange rules.
– Reg SHO requirements: Short sellers and brokers must also comply with Reg SHO — the SEC’s locate requirement and close‑out rules for persistent “fails to deliver.” Reg SHO is separate from Rule 201 but important to any shorting activity.
Examples
– Classic uptick scenario (pre‑2007 style): Last trade = $10.00. A short seller could post a short sell order at $10.05 (an uptick) so the sale would be on an uptick rather than at or below the last trade.
– Rule 201 scenario: Yesterday’s close = $20.00. Today’s price drops 12% to $17.60 (triggered). For the remainder of today and all of tomorrow, short sales may only execute at prices above the national best bid (e.g., if best bid = $17.50 and best ask = $17.55, a short sale could execute at $17.55 or higher, but not at $17.50).
Practical steps — For individual investors
1. Know when the rule might be active:
• Monitor intraday percentage moves relative to the prior close. A 10% single‑day decline triggers the SSTPR.
• Use broker tools or exchange notices that flag securities under SSTPR.
2. Use limit orders instead of market orders:
• Limit orders give you control over execution price and help avoid unintended fills when liquidity is thin or short‑sale restrictions are active.
3. Verify short‑sale eligibility and borrow availability:
• Ensure your broker has located and can borrow shares (per Reg SHO locate requirements). An inability to borrow means you cannot enter a short sale.
4. Check order designations:
• Some orders can be submitted as “short exempt” if you think an exemption applies—confirm with your broker and be aware misuse can cause compliance issues.
5. Manage risk tightly:
• Short positions can face rapid losses. Use position limits, stop/stop‑limit orders, and size trades conservatively.
6. Understand execution constraints during SSTPR:
• If a security is under the price test restriction, a short order submitted at or below the best bid will be rejected or converted only if permitted by broker/exemption rules.
7. Stay informed on news and catalysts:
• Major corporate or macro announcements can create rapid price moves that trigger Rule 201; avoid initiating shorts into unknown catalysts.
Practical steps — For brokers and market professionals
1. Implement automated monitoring:
• Have systems that detect 10% single‑day declines and flag or block non‑compliant short orders.
2. Train compliance staff and traders:
• Ensure everyone understands SSTPR mechanics, duration, exemptions, and reporting obligations.
3. Maintain borrow inventory and locate policies:
• Comply with Reg SHO locates and close‑out rules to minimize fails to deliver.
4. Coordinate with exchanges and clearing agencies:
• Ensure procedures align with exchange notices and SEC guidance when SSTPR is triggered.
Pros and cons of the uptick/SSTPR approach
– Pros:
• Reduces potential for abusive short selling during precipitous declines.
• Gives long holders an opportunity to exit positions without being undercut by new short sales.
• Can stabilize market confidence during periods of stress.
– Cons:
• May impair price discovery by constraining legitimate shorting when it could be informative.
• Can reduce liquidity and widen spreads in stressed securities.
• Complexities around exemptions, order types, and multi‑venue trading can create operational friction.
FAQ (brief)
– Does Rule 201 ban short selling entirely when triggered?
• No. It restricts short sales so they can only execute at a price above the national best bid; it does not ban short sales outright.
– How long does the restriction last?
• For the remainder of the day it is triggered and all of the following trading day.
– Is the alternative uptick rule the same as the old uptick rule?
• No. The original rule required upticks for short sales at all times. Rule 201 is a conditional restriction that only activates after a 10% intraday decline.
Further reading and sources
– Investopedia — Uptick Rule:
– U.S. Securities and Exchange Commission — SEC Approves Short Selling Restrictions (Rule 201) (press release and rule text)
– SEC Regulation SHO (locate and close‑out requirements)
Editor’s note: The following topics are reserved for upcoming updates and will be expanded with detailed examples and datasets.