237.50
-8.50
(-3.46%)
06/17/2026
Amazon.com, Inc. (AMZN)At a Glance
Expected move
±6.39%
avg absolute
1σ range (close-to-close)
-5.03% To 9.64%
~68% of moves
Closed higher
67%
of 6 reports
EPS beat rate
67%
4 of 6 beat
Earnings-day volume
2.0×
vs prior 20-day avg
The expected move is the historical average absolute close-to-close reaction; option sellers can compare it against the straddle's implied move. The 1σ range is the mean ± one standard deviation — roughly two of every three earnings reactions have landed inside it.
Gap-and-Go vs Fade
After the earnings open, did AMZN keep moving in the gap's direction (gap-and-go) or reverse (fade)? Based on the opening gap vs the open-to-close move on each earnings date.
| Open gapped | Continued (gap-and-go) | Reversed (fade) |
| Up (3x) | 2 · 67% | 1 · 33% |
| Down (3x) | 1 · 33% | 2 · 67% |
The open's direction held into the close on 50% of earnings dates (3 of 6).On gap-ups, AMZN continued higher 67% of the time and faded 33% of the time.On gap-downs, it continued lower 33% of the time and reversed up 67% of the time.Earnings-Day Relative Volume
Trading volume on each earnings date as a multiple of the stock's average daily volume over the prior 20 trading days. 1× = a normal day; higher bars mean the market traded the print heavily.
AMZN earnings days have averaged 2.0× normal volume, peaking at 2.7×.Volume ran above its 20-day norm on 100% of earnings dates.
Earnings Surprise vs Price Reaction
Each point is one earnings event: EPS surprise % (horizontal) vs the actual close-to-close earnings move % (vertical). Upper-right and lower-left = the stock moved with the surprise; upper-left and lower-right = it moved against it. Green = beat, red = miss.
Across these 6 reports there is a weak positive relationship between the EPS surprise and the price move (r = 0.17).
Opening Gap (%)
The % change in price from the close before earnings is released to the open immediately after earnings is released. If earnings is Tuesday AMC (After Market Close), this is Tuesday close to Wednesday open. If earnings is Friday BMO (Before Market Open), this is Thursday close to Friday open.
| Average | Min | Max | Median | Up (%) | Down (%) |
The historical opening gap move in AMZN stock price following earnings has averaged ±7.62% (meaning either direction), with a median of 8.10%.The single best opening gap move was 10.32%The worst gap over this timeframe was -11.76%.For 50% of the dates, the stock opened higher after earnings.
| Absolute | 7.62 | 1.90 | 11.76 | 8.10 | 50 | 50 |
| Simple | 0.81 | -11.76 | 10.32 | 1.82 | 50 | 50 |
Reaction asymmetry: average up move +8.43% (3x) vs average down move -6.81% (3x). Up-moves run 1.24x the size of down-moves — upside-skewed reactions.
Historical earnings opening gap moves gauge the stock's shift from the previous day's close to the opening price on dates surrounding an earnings announcement.
The term 'gap' is used because the price can undergo significant changes between the closing and opening prices following an earnings announcement.
Traders holding overnight positions find it crucial to comprehend historical earnings opening gap moves, enabling them to initiate risk management strategies once the market opens.
Option traders, restricted to trading during market hours, can only begin addressing risk after the market opens due to the absence of after-hours option trading.
Examining historical gap data empowers traders to evaluate potential overnight risks associated with earnings events, facilitating improved risk management and informed trading choices.
For instance, traders shorting option straddles can use historical gap moves as a reference to estimate potential outcomes and risks from holding the position overnight until the beginning of the trading day.
In summary, historical earnings opening gap moves offer valuable insights for traders to manage risk effectively and make well-informed trading decisions. Understanding historical trends equips traders to predict potential outcomes and make strategic decisions with confidence.