While there is a vast effort by many speculators to anticipate such earnings acceleration and take positions in anticipation, even if you react to earnings and enter after the earnings announcement, you still can catch bulk of the move.
Ball and Brown in 1968 first documented the PEAD anomaly.
1989 more research on PEAD
In 1989 a paper was published (Bernard, V. and J. Thomas, 1989, "Post-Earnings-Announcement Drift: Delayed Price Response or Risk Premium." Journal of Accounting Research. Vol 27 Supplement 1989, 1-36) which further enhanced the study of PEAD and demolished much of the objection of efficient market theorist to PEAD.
PEAD generates 6.3% abnormal return in 60 days
As is customary in all finance research designs, the author form deciles based on each event’s standardized unexpected earnings (SUE).
What you need to know about PEAD
PEAD phenomenon is more pronounced in thinly traded stocks.
PEAD phenomenon is more pronounced in stocks with no analyst coverage.
PEAD returns persist even after one quarter.
PEAD is more pronounced on stocks with revenue surprise in addition to earnings surprise
Merrill Lynch quantitative strategist Richard Bernstein in his book Style Investing: Unique Insight Into Equity Management offers a very useful conceptual framework for understanding the role of earnings and earnings expectations in stocks price growth.
Bernstein's earnings expectations model compares earnings expectations of a typical company on a clock face.
The strategy basically offers a choice of value investing or growth investing based on how early you identify earnings potential of a stock.
12 to 3
12 o’clock: The company’s earnings are high and expectations are also very high
1 o’clock: Torpedo is a negative earning surprise
3 o’clock: Analysts revise earnings estimates downward. Growth investors abandon the stock.\
3 to 6
4 o’clock: Earnings expectations continue to fall dramatically.
6 o’clock: At some stage earnings expectations reach their low point. At this point most of the bad news is priced in. Expectations are at lowest level. Contrarian investors focus here.
6 to 9
6 o'clock:This is where value investors focus. Value investors want to buy stocks neglected by market but which have the potential to surprise on earnings front. They want to buy it before the earning surprise. One of the risk of value approach is if you buy too early, you have to wait a long time.
7 o’clock: Stock has a positive earnings surprise. If it is a genuine turnaround there will be more surprises down the line.
9 o’clock: Market starts to recognize the stock and its earning potential.
9 to 12
This is where primarily growth investors focus. They want companies that have exhibited consistent earnings growth over several quarters. They pay premium for such stocks as the stock has already moved from low expectations to high. The value investors pass on these stocks to growth investors during this transition phase. The risk of growth investing is overstaying the party beyond midnight.
11 o’clock: Everyone becomes aware of the company.
12 o’clock: Earnings and earnings expectations reach peak.
The CANSLIM strategy primarily operates in the 9 to 12 quadrant.
That is one of the reason many of the stocks on IBD 100 can break down also after appearing in the list.
Earnings lead breakouts operates primarily in the 6 to 9 quadrant.
Building a mix of earnings based strategies in the 6 to 12'o clock time frame gives you best of both worlds.
Mark Minervini's SEPA
If you want to profit from that then look for big earnings surprises.