Key Takeaways
- Trade matches prior price but higher than last different price.
- Indicates upward momentum or price stabilization.
- Central to historic SEC uptick rule limiting short selling.
What is Zero Plus Tick?
A zero plus tick is a type of trade executed at the same price as the immediately preceding trade but higher than the last trade that occurred at a different price. This concept helps identify upward momentum or price stabilization in securities trading.
It is often used in analyzing price movements in stocks, bonds, and commodities, and has historical significance in regulations governing short selling. Understanding zero plus ticks can enhance your insight into market microstructure and trade execution.
Key Characteristics
Zero plus ticks have distinct features that differentiate them from other tick types:
- Price equality: The trade price matches the previous trade's price exactly, indicating no immediate price change.
- Higher reference point: That price is higher than the most recent trade at a different price, confirming an uptick condition.
- Market relevance: Commonly applied to equity securities but also relevant for bonds and commodities.
- Role in regulations: Historically important under the uptick rule, which limited short selling to uptick or zero plus tick trades.
- Impact on trading strategy: Signals potential price stabilization or upward momentum, useful for timing sales or entries.
How It Works
Zero plus ticks occur in trade sequences where the current trade matches the price of the previous trade, but that price is above the last different trade price. This "zero" price change combined with a "plus" reference point signals a pause or continuation of upward movement.
For example, if a stock trades at $20.00, then rises to $22.00, a subsequent trade at $22.00 is a zero plus tick because it matches the immediate previous price but is above $20.00. Traders monitor these ticks to confirm momentum without new price increases, aiding in decisions aligned with market trends and regulatory frameworks.
Examples and Use Cases
Zero plus ticks appear frequently in active markets and can inform various trading strategies and regulatory compliance:
- Airlines: Delta and American Airlines often exhibit zero plus ticks during periods of price consolidation after rallies.
- Market rallies: During a rally, zero plus ticks indicate moments where prices stabilize at higher levels before potentially moving further up.
- Dividend investing: Investors focused on best dividend stocks may track zero plus ticks to time purchases around price stability points.
- Large-cap stocks: Zero plus ticks are common in large-cap stocks, which tend to have higher liquidity and frequent trade sequences.
Important Considerations
While zero plus ticks provide valuable insight into price action, they are not foolproof indicators. Market conditions, volume, and external factors can influence their reliability. Traders should combine tick analysis with broader metrics and risk management strategies such as understanding your obligation in trading positions.
Additionally, the repeal of the original uptick rule means that regulatory protections linked to zero plus ticks are less stringent today, requiring you to stay informed about current short-selling rules and market microstructure for effective application.
Final Words
Zero plus ticks indicate trades at stable or rising prices, reflecting potential upward momentum. Monitor these patterns to better understand price movements and consider incorporating them when analyzing short-sale restrictions or trading strategies.
Frequently Asked Questions
A Zero Plus Tick occurs when a trade is executed at the same price as the immediately preceding trade but higher than the last trade that happened at a different price. It indicates a price that has not changed from the prior transaction but is still higher compared to the previous different price.
A regular uptick happens when the trade price is higher than the previous trade price, whereas a Zero Plus Tick matches the most recent trade price but remains above the last different price. Essentially, it’s a trade at the same price as the last one but still referencing a higher prior price.
Zero Plus Ticks signal upward momentum or price stabilization, helping traders identify when a stock is not in freefall. Historically, they were key to the SEC's uptick rule, which limited short selling to such ticks to prevent exaggerated downward price spirals.
Zero Plus Ticks primarily apply to listed equity securities like stocks but can also be relevant in bond, commodity, and other trading markets where price ticks and trade sequences are tracked.
The SEC’s uptick rule, effective until 2010, allowed short selling only on upticks or Zero Plus Ticks to prevent excessive downward pressure on stock prices. This helped limit market manipulation and promote stability by ensuring short sales happened only on upward or stable price movements.
Yes, multiple Zero Plus Ticks can occur in a row as trades execute at the same price, each higher than the last different price. This often happens during periods of price stabilization following an uptick, indicating consistent upward momentum.
Despite the repeal of the original uptick rule, concepts involving Zero Plus Ticks remain important in modern trading regulations and analysis. Modified rules like Regulation SHO still use similar tick tests to control short selling and assist traders in understanding market momentum.

