Bel Fuse Inc. (BELFB)
NASDAQ: BELFB
· Real-Time Price · USD
138.97
-3.47 (-2.44%)
At close: Oct 03, 2025, 3:59 PM
136.27
-1.94%
After-hours: Oct 03, 2025, 05:20 PM EDT
BELFB Option Overview
Overview for all option chains of BELFB. As of October 05, 2025, BELFB options have an IV of 83.14% and an IV rank of 106.31%. The volume is 21 contracts, which is 420% of average daily volume of 5 contracts. The volume put-call ratio is 6, indicating a bearish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
83.14%IV Rank
100%Historical Volatility
39.95%IV Low
47.74% on Jul 18, 2025IV High
81.04% on Sep 18, 2025Open Interest (OI)
Today's Open Interest
1,908Put-Call Ratio
0.03Put Open Interest
64Call Open Interest
1,844Open Interest Avg (30-day)
453Today vs Open Interest Avg (30-day)
421.19%Option Volume
Today's Volume
21Put-Call Ratio
6Put Volume
18Call Volume
3Volume Avg (30-day)
5Today vs Volume Avg (30-day)
420%Option Chain Statistics
This table provides a comprehensive overview of all BELFB 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 | 2 | 0 | 0 | 18 | 3 | 0.17 | 83.14% | 135 |
| Nov 21, 2025 | 0 | 0 | 0 | 2 | 4 | 2 | 62.69% | 145 |
| Dec 19, 2025 | 0 | 0 | 0 | 102 | 20 | 0.2 | 55.73% | 80 |
| Jan 16, 2026 | 0 | 0 | 0 | 1,433 | 0 | 0 | n/a | 7 |
| Mar 20, 2026 | 1 | 18 | 18 | 289 | 37 | 0.13 | 49.34% | 120 |