Tandem Diabetes Care Inc. (TNDM)
NASDAQ: TNDM
· Real-Time Price · USD
14.71
1.60 (12.20%)
At close: Oct 03, 2025, 3:59 PM
14.84
0.89%
After-hours: Oct 03, 2025, 07:39 PM EDT
TNDM Option Overview
Overview for all option chains of TNDM. As of October 05, 2025, TNDM options have an IV of 222.33% and an IV rank of 125.1%. The volume is 1,304 contracts, which is 513.39% of average daily volume of 254 contracts. The volume put-call ratio is 0.04, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
222.33%IV Rank
100%Historical Volatility
64.31%IV Low
66% on Jan 22, 2025IV High
190.96% on Oct 03, 2025Open Interest (OI)
Today's Open Interest
12,167Put-Call Ratio
0.9Put Open Interest
5,769Call Open Interest
6,398Open Interest Avg (30-day)
10,811Today vs Open Interest Avg (30-day)
112.54%Option Volume
Today's Volume
1,304Put-Call Ratio
0.04Put Volume
49Call Volume
1,255Volume Avg (30-day)
254Today vs Volume Avg (30-day)
513.39%Option Chain Statistics
This table provides a comprehensive overview of all TNDM options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Oct 17, 2025 | 120 | 8 | 0.07 | 401 | 233 | 0.58 | 222.33% | 13 |
| Nov 21, 2025 | 624 | 40 | 0.06 | 2,121 | 1,385 | 0.65 | 145.41% | 14 |
| Jan 16, 2026 | 223 | 1 | 0 | 2,417 | 2,921 | 1.21 | 97.34% | 19 |
| Feb 20, 2026 | 240 | 0 | 0 | 433 | 91 | 0.21 | 106.96% | 12 |
| May 15, 2026 | 19 | 0 | 0 | 46 | 0 | 0 | 107.09% | 3 |
| Dec 18, 2026 | 0 | 0 | 0 | 0 | 0 | 0 | 3.76% | 97.5 |
| Jan 15, 2027 | 29 | 0 | 0 | 980 | 1,139 | 1.16 | 86.49% | 13 |