Quanterix (QTRX) Options Chain
NASDAQ: QTRXIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $3.21
- Put/call ratio (OI)
- 0.00
- Put/call ratio (volume)
- 0.00
- ATM implied volatility
- 551.6%
- Expected move
- ±$2.62
- Open interest (C / P)
- 231 / 0
QTRX options summary
The QTRX options chain for the October 16, 2026 expiration lists 2 call and 1 put contracts, with 8 days until expiration. Open interest stands at 231 calls and 0 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 551.6%, which implies the market expects a move of about ±$2.62 (81.7%) in Quanterix stock by expiration.
The most open interest sits at the $2.50 call (225 contracts) and the $5.00 put (0 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
QTRX options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.95 | 0.00 | 1.30 | 2.50 | — | — | — | |||||
| 0.03 | 0.00 | 0.95 | 5.00 | 1.05 | 2.50 | 2.25 | |||||
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 October 16, 2026 expiration, the QTRX put/call ratio based on open interest is 0.00 (0 puts vs 231 calls), and 0.00 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 October 16, 2026 is about 551.6%, 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.