Historical Beat Rate and Post-Earnings Drift
Coca-Cola (KO) enters its next report with an 8-for-8 earnings-beat record over the last eight quarters, a 100% beat rate, and an average earnings surprise of 4.4%. That history is anchored by concrete numbers: on 2026-04-28, KO reported $0.86 EPS against a $0.812 estimate, a 5.9% positive surprise, and the stock rose 0.66% the next session and 0.17% over the following five days. On 2026-02-10, actual EPS was $0.58 versus a $0.565 estimate, a 2.7% beat, producing a 2.33% one-day gain and a 3.49% five-day gain. The two earlier reports show the opposite price behavior. On 2025-10-21, KO posted $0.82 against $0.779 (5.3% surprise), yet the stock fell 0.58% the next day and 1.49% over the next five sessions. On 2025-07-22, KO delivered $0.87 versus $0.834 (4.3% surprise), and the stock dropped 0.72% the next day and 0.4% across the next five days. Across all eight quarters, the average five-day post-earnings drift is just 0.44%, classified as “flat.” That means a beat, even a recurring one, does not mechanically translate into a directional price follow-through for KO.
Options-Flow Dynamics Around the July 28 Report
KO’s next scheduled earnings release is 2026-07-28 before the market open, with the consensus EPS estimate at $0.92. With the stock at $81.56, options pricing will embed an implied move for the event. A useful yardstick is the historical five-day post-earnings drift of 0.44%. If the front-week options are pricing a move materially above that realized average, traders are paying a volatility premium relative to what KO has delivered after recent reports. Watch for straddle and strangle buying, which lifts implied volatility ahead of the event, and note whether the flow is call-heavy, put-heavy, or balanced. Because dealers may be short gamma into the print, any surprises relative to the market's real expectation can force hedging flows that amplify the immediate move. Conversely, if dealers are long gamma, price action may compress around key strikes. Sector context also matters: as a Consumer Defensive / Beverages - Non-Alcoholic name, KO can also be treated as a macro-rotation vehicle, adding cross-currents to pure earnings-driven flow.
What a Disciplined Trader Watches
Given KO’s pattern, a disciplined trader separates the earnings result from the price reaction. The 100% beat rate and 4.4% average surprise set the baseline, but the next-day moves have ranged from +2.33% (2026-02-10) to -0.72% (2025-07-22), demonstrating that the market reprices the stock on factors beyond the headline beat. The average five-day drift of 0.44% suggests chasing the first hour’s move has not been rewarded on average. Current technicals offer a neutral backdrop: price is $81.56, the 50-day EMA is $81.05, and RSI is 48.3. A risk-managed approach typically compares the options-implied move to the historical 0.44% drift, waits to see whether the post-earnings move expands or mean-reverts, and accounts for the volatility crush that can erode premium once the event passes. For a more complete picture, including how institutional models are currently positioned around the 2026-07-28 report, look at the full institutional verdict for a deeper dive.
| Reported | Actual | Estimate | Surprise | 1D Move | 5D Move |
|---|---|---|---|---|---|
| 2026-04-28 | $0.86 | $0.812 | +5.9% | +0.66% | +0.17% |
| 2026-02-10 | $0.58 | $0.565 | +2.7% | +2.33% | +3.49% |
| 2025-10-21 | $0.82 | $0.779 | +5.3% | -0.58% | -1.49% |
| 2025-07-22 | $0.87 | $0.834 | +4.3% | -0.72% | -0.4% |
| 2025-04-29 | $0.73 | $0.714 | +2.2% | - | - |
| 2025-02-11 | $0.55 | $0.518 | +6.2% | - | - |
Get the institutional verdict on KO
Seven-seat 21-ERT council. Pre-print forecast signed before the earnings release. Post-print grade, published in public. Every verdict sealed with a cryptographic receipt.
Read the KO verdict at Gamma QCVerify authenticity
Every Gamma QC verdict is signed with a cryptographic receipt at issuance. Independently verify any published verdict at attest.gammaqc.com. This educational primer is content-only and not itself signed; the institutional verdict at the link above is.