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BIIB · Fibonacci levels

Biogen Inc. - Fib retracement grid

Auto-computed from the 252-day swing window. Key anchors (0.382 / 0.5 / 0.618 / 0.786) match the curated Fib basket QuantAbundancia tracks.

Last close
$208.92
52w high
$226.00
2026-05-14
52w low
$121.05
2025-07-21
Range
$104.95
86.7%

Retracements (high → low)

  • 0.000$226.00+8.2% from last
  • 0.236$201.23-3.7% from last
  • 0.382KEY$185.91-11.0% from last
  • 0.500KEY$173.53-16.9% from last
  • 0.618KEY$161.14-22.9% from last
  • 0.786KEY$143.51-31.3% from last
  • 1.000$121.05-42.1% from last

Extensions (past high)

  • 1.272$254.55+21.8% from last
  • 1.414$269.45+29.0% from last
  • 1.618$290.86+39.2% from last
  • 2.000$330.95+58.4% from last
  • 2.618$395.81+89.5% from last
Alert me on $BIIBFull BIIB page →Manual high/low input →

Educational tools. Outputs are math, not advice. Verify against your broker before placing any order.