Click to view the earnings moves in ANGO
Big Jump on Earnings—But Will It Stick?
AngioDynamics (ANGO) grabbed the spotlight today with an 8.4% stock jump after reporting strong fiscal Q1 results and raising guidance for 2026. The med tech company showed off another quarter of 20%+ segment growth, fueled by product wins in atherectomy, thrombectomy, and its NanoKnife platform. But before assuming today's pop will last, it pays to look at ANGO's track record after earnings—and it tells a much more complicated story.
Earnings Move Surprises: What Actually Happens?
Today’s options market had priced in a move of ±15.6% for ANGO shares around this earnings event—expecting high volatility. The actual move of +8.4% was far more modest but still impressive compared to the previous quarter’s -10.2% drop.
ANGO’s Earnings Day Performance: Historical Trends
Digging into ANGO’s last 12 earnings events, a few themes jump out:
- The average return on earnings day: +1.8%—showing slight positive bias overall.
- Gaps at the open tend to be higher than the close: on average, the stock gaps up +3.8% at the open, but fades through the day with an average open-to-close drift of -2.3%.
- Only half of earnings days actually finish higher, and a greater percentage drift lower from open to close than rally into the close.
| Stock Performance | Earnings Move | Open Gap | Open to High | Open to Low | Open to Close |
|---|---|---|---|---|---|
| Average Return | +1.8% | +3.8% | +5.4% | -7.8% | -2.3% |
| % of Moves Up | 50.0% | 66.7% | 33.3% | ||
| % of Moves Down | 50.0% | 33.3% | 58.3% |
View detailed ANGO earnings move statistics
How Big Are Earnings Day Moves—Really?
If you’re looking for big fireworks, ANGO certainly delivers at times, with the maximum single-day move in recent years topping 37.7%. Still, most days see smaller swings—and zero is rarer than you might expect.
| Stock Performance | Earnings Move | Open Gap | Open to High | Open to Low | Open to Close |
|---|---|---|---|---|---|
| Absolute Average Return | 14.9% | 12.5% | 5.4% | 7.8% | 6.5% |
| Max Absolute Return | 37.7% | 25.1% | 12.5% | 17.9% | 17.6% |
| Min Absolute Return | 1.7% | 3.7% | 0.2% | 0.8% | 0.0% |
Do Post-Earnings Gains Hold Up?
Even when ANGO opens higher after an earnings pop, it often drifts down. In fact, one week and two weeks after earnings, ANGO’s average returns have been -3.1% and -4.0% respectively, with only about 27% of post-earnings periods posting gains.
| Stock Performance | 1 Day After Earnings | 2 Days After Earnings | 3 Days After Earnings | 1 Week After Earnings | 2 Weeks After Earnings |
|---|---|---|---|---|---|
| Average Return | -0.1% | -2.7% | -3.7% | -3.1% | -4.0% |
| % of Moves Up | 27.3% | 36.4% | 27.3% | 27.3% | 27.3% |
| % of Moves Down | 72.7% | 63.6% | 72.7% | 72.7% | 72.7% |
Most Active Option: Spotlight on the 17-Oct-25 12.5 Call
Options traders were especially busy in the 17-Oct-25 12.5 strike calls. Here’s a quick breakdown of that contract’s stats today:
| Option Contract | 17-Oct-25 12.5 C |
|---|---|
| Volume | 262 |
| VWAP Price | 0.34 |
| Open Interest | 1,946 |
| Yesterday's Closing Price | 0.38 |
The Takeaway for ANGO Traders and Investors
AngioDynamics’ stock surge and raised guidance reflect real fundamental progress in the Med Tech business, especially with 26.1% year-over-year growth and stronger EBITDA. But ANGO’s history suggests traders shouldn’t get too comfortable: half of all earnings days see the stock give back early gains, and post-earnings slumps are more common than sustained rallies.
If you’re following the price action or planning to play the next move, consider both the fundamental growth story and the hard statistical odds: ANGO’s best days have often faded by week’s end. For the detailed earnings-day statistics and even more breakdowns, check out the ANGO earnings performance page here.
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