Failure-to-Deliver (FTD) Aging Squeeze
The Formal Definition
A short-squeeze dynamic triggered when unsettled short-sale transactions exceed statutory aging limits under SEC Regulation SHO (specifically the 13-consecutive-settlement-day threshold), legally forcing clearing firms to execute mandatory open-market buy-ins.
Mandatory Close-Out Trigger: Persistent Clearing FTDs on Reg SHO Threshold Security for 13 Consecutive Settlement Days → Mandatory Automated Market Buy-In
Cole Barrett's Reality Check
The Unvarnished Bottom Line"Failures to Deliver are Wall Street's unwashed laundry. When short sellers trade without borrowing shares, Failures to Deliver pile up at the clearinghouse. Under federal rules, a broker can only sweep FTDs under the rug for so long. Once a stock has been on the Reg SHO threshold list for 13 consecutive days, the clearing firm is legally forced to buy the shares back on the open market. That mandatory buying is the fuel that launches short squeezes."
Interactive Simulator: Test the Math
Real-World Example: Scenario Breakdown
Examining the real numbers for: Tracking a heavily shorted retail meme equity that hits Day 13 on the SEC Regulation SHO Threshold List
| Execution Metric | FTD Aging Tracker (Quantitative Flow Desk) | Unaware Short Seller (Caught in the Buy-In) |
|---|---|---|
| Fee / Rate | $1.00 fee | $0.00 |
| Spread / Buffer | Monitored public SEC daily FTD data; identified Day 13 mandatory close-out window | Held naked short position assuming broker would maintain locate indefinitely |
| Execution / Status | Entered long position at $22.00 ahead of clearinghouse mandatory buy-in deadline | Broker risk engine executed mandatory buy-in at $38.00 open print to resolve aging fail |
| Total Cost / Result | Captured +72.7% gain by anticipating statutory buy-in timing | Liquidated by statutory clearinghouse close-out mandates |
How Brokers Weaponize This Term
Clearing internalizers delay resolving aging Failures to Deliver using continuous net settlement (CNS) loops until the statutory Day 13 deadline forces them to execute market buy-ins against retail short sellers.
Broker Evaluation Matrix
Cole Approves
Interactive Brokers: Institutional short-sale portal provides daily real-time Short Sale Restriction (SSR) tags, locate fee histories, and Reg SHO Threshold List indicators.
Read Audit →Cole Flags / Avoids
Zero-Fee Clearing Desks: Operates high internal failure-to-deliver ratios that trigger frequent, unannounced mandatory buy-ins against customer accounts.
View Trap Details →Frequently Asked Questions
Where does the SEC publish daily Failure to Deliver data?
The SEC publishes twice-monthly downloadable FTD datasets on its official website, detailing aggregate unsettled share counts across all US exchange-listed equities.
What criteria puts a stock on the Reg SHO Threshold List?
An aggregate failure to deliver for five consecutive settlement days of 10,000 shares or more, equaling at least 0.5% of the issuer's total outstanding shares.