Quanterix (QTRX) Options Chain
NASDAQ: QTRXIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $3.28
- Put/call ratio (OI)
- 0.16
- Put/call ratio (volume)
- 0.20
- Expected move
- ±$0.9713
- Open interest (C / P)
- 810 / 129
QTRX options summary
The QTRX options chain for the November 20, 2026 expiration lists 3 call and 3 put contracts, with 40 days until expiration. Open interest stands at 810 calls and 129 puts, a put/call ratio of 0.16, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 89.5%, which implies the market expects a move of about ±$0.9713 (29.6%) in Quanterix stock by expiration.
The most open interest sits at the $7.50 call (308 contracts) and the $2.50 put (129 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
QTRX options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.80 | 0.10 | 1.65 | 2.50 | 0.05 | 0.10 | 0.10 | |||||
| 0.15 | 0.10 | 0.40 | 5.00 | 0.00 | 0.00 | 2.37 | |||||
| 0.04 | 0.00 | 0.10 | 7.50 | 0.00 | 0.00 | 4.90 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the QTRX put/call ratio?
For the November 20, 2026 expiration, the QTRX put/call ratio based on open interest is 0.16 (129 puts vs 810 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.
What is QTRX's implied volatility?
At-the-money implied volatility for QTRX options expiring November 20, 2026 is about 89.5%, an annualized estimate of how much the market expects Quanterix stock to move.
How many QTRX option expiration dates are there?
QTRX has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.