BI
Biogen Inc.
BIIB · Biogen Inc. · Healthcare
Up next day
5/12
42%
Fell despite growth
2/12
Good earnings ignored
Avg earnings move
±2.7%
typical swing on earnings
Price when beating
-0.5%
avg over 11 beats
Biggest single move
-4.0%
'24.9 · largest reaction
How this stock reacts to earnings
Traits seen across its recent earnings reactions
Even strong results barely move the stock
Up the next day 5 of 11 beats (45%)
Big earnings-day moves tend to fade within days
Reversed the day-one move · 75% of last 12
vs Healthcare sector avg (153 peers)
This
-0.7%
Sector
+0.4%
Avg next-day reaction
Earnings number vs guidance — which drives it?
How often the beat/miss matched the actual price move
The number and guidance move the price about equally
Moved opposite to results 6 of last 12 times (50%)
6xBeat but fell
Even a beat sells off if guidance disappoints
0xMissed but rose
Even a miss rebounds if guidance reassures
Earnings timeline · tap a bar for that quarter
Oct 29Before open
'26.7 expectedEst. EPS $2.04
Quarter ended 3/2026
Reported 2026-04-29
Next-day move
-2.6%
After 5 days -1.9%
vs Consensus$2.95→$3.57+20.9% beat
Beat by +20.9% but stock -2.6%
EPS
$3.57
YoY +18%
Revenue
$2.5B
YoY +2%
Next-Q guidance
—
N/A
Price around earnings
Fell despite growthvs market -3.6%p
Earnings trend · last 12 quarters
EPS$3.57YoY +18%
'23.6'26.3
Revenue$2.5BYoY +2%
'23.6'26.3
Price vs earnings · last 12 quarters
↑Up↓Down
Bad news out
weak · up ↑
1x8%
Met expectations
good · up ↑
4x33%
Disappointment
weak · down ↓
5x42%
Good earnings ignored
good · down ↓
2x17%
← ← Weak earningsStrong earnings → →
Weak earnings, price down — reacts honestly to earnings · 5 of 12q (42%)
Community · BIIB
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