ETF universe handoff

Opening ETF evidence benchSynchronizing prices, risk metrics, holdings coverage, and source lineage

Company research · XLV

Biogen Inc.

NASDAQ:BIIB

Pharmaceuticals: Major · attribution context sourced from stored price moves, stored event labels, and peer-relative residuals inside the XLV constituent company universe.

Open overview Open coverage audit Back to ETF companies

Attribution backlog

10high-priority unexplained moves

Market cap29.5B

Last close202.78

1M return-2.72%

Stored moves17

Stored price tapeDaily OHLC candles

+1.42%

Full history and event labels

May 13, 5:30 AM O 198.47 H 202.4 L 196.4675 C 199.36 V 1145749, May 13, 9:30 PM O 199.33 H 205.97 L 198.86 C 204.53 V 1272026, May 14, 5:30 AM O 199.33 H 205.97 L 198.86 C 204.53 V 1272026, May 14, 9:30 PM O 200.25 H 205 L 189.49 C 191.37 V 2812933, May 15, 5:30 AM O 200.25 H 205 L 189.49 C 191.37 V 2812933, May 15, 9:30 PM O 191.83 H 194.91 L 190.655 C 192.95 V 1252271, May 16, 5:30 AM O 191.83 H 194.91 L 190.655 C 192.95 V 1252271, May 18, 9:30 PM O 191.25 H 193.37 L 189.19 C 191.91 V 1051356, May 19, 5:30 AM O 191.25 H 193.37 L 189.19 C 191.91 V 1051356, May 19, 9:30 PM O 191.72 H 193.03 L 188.64 C 190.56 V 1054138, May 20, 5:30 AM O 191.72 H 193.03 L 188.64 C 190.56 V 1054138, May 20, 9:30 PM O 191.41 H 193.38 L 186.37 C 187.8 V 919894, May 21, 5:30 AM O 191.41 H 193.38 L 186.37 C 187.8 V 919894, May 21, 9:30 PM O 187.4 H 190.27 L 185.85 C 189.47 V 1475348, May 22, 5:30 AM O 187.4 H 190.27 L 185.85 C 189.47 V 1475348, May 22, 9:30 PM O 190.53 H 194.75 L 190.005 C 193.76 V 892933, May 23, 5:30 AM O 190.53 H 194.75 L 190.005 C 193.76 V 892933, May 26, 9:30 PM O 194.3 H 195.5 L 192.27 C 193.08 V 930212, May 27, 5:30 AM O 194.3 H 195.5 L 192.27 C 193.08 V 930212, May 27, 9:30 PM O 194.11 H 199.8 L 194.11 C 196.97 V 893048, May 28, 9:30 PM O 196.97 H 198 L 194.5 C 196.39 V 556331, May 29, 9:30 PM O 195.55 H 198.46 L 195.11 C 196 V 1905488, Jun 1, 9:30 PM O 194.5 H 195.28 L 191.67 C 192.23 V 841499, Jun 2, 9:30 PM O 190.09 H 190.58 L 184.9 C 188.83 V 1098098, Jun 3, 9:30 PM O 187.69 H 196.505 L 187.48 C 195.96 V 891787, Jun 4, 9:30 PM O 198 H 199.9 L 196.345 C 196.45 V 719127, Jun 5, 9:30 PM O 196.45 H 200.6575 L 195.14 C 195.34 V 880438, Jun 8, 9:30 PM O 197.25 H 198.695 L 192.18 C 192.62 V 1162350, Jun 9, 9:30 PM O 195.51 H 199.6325 L 193.45 C 199.1 V 934191, Jun 10, 9:30 PM O 200.21 H 201.9405 L 194.1 C 194.24 V 1071228, Jun 11, 9:30 PM O 195.49 H 201.175 L 194.24 C 199.96 V 914781, Jun 12, 9:30 PM O 200.57 H 203.45 L 199.06 C 200.05 V 837294, Jun 15, 9:30 PM O 198.37 H 199.3718 L 195.89 C 198.64 V 883963, Jun 16, 9:30 PM O 199.69 H 200.26 L 194.04 C 195.61 V 1110656, Jun 17, 9:30 PM O 195.14 H 201.75 L 194.035 C 198.67 V 1009032, Jun 18, 9:30 PM O 200.22 H 200.99 L 193.195 C 196.58 V 1729826, Jun 22, 9:30 PM O 199.48 H 200.975 L 194.74 C 199.71 V 1675111, Jun 23, 9:30 PM O 198.88 H 201.22 L 197.01 C 197.19 V 1053492, Jun 24, 9:30 PM O 199.34 H 202.0575 L 198.66 C 199.59 V 1349120, Jun 25, 9:30 PM O 201.63 H 206.67 L 200.2 C 201.96 V 1328911, Jun 26, 9:30 PM O 202.525 H 218.06 L 202.29 C 216.03 V 2374525, Jun 27, 5:30 AM O 202.525 H 218.06 L 202.29 C 216.03 V 2374525, Jun 29, 9:30 PM O 215.74 H 219.72 L 214.08 C 216.63 V 1279990, Jun 30, 5:30 AM O 215.74 H 219.72 L 214.08 C 216.63 V 1279990, Jun 30, 9:30 PM O 218 H 218 L 212.5801 C 216.06 V 1091325, Jul 1, 5:30 AM O 218 H 218 L 212.5801 C 216.06 V 1091325, Jul 1, 9:30 PM O 215.25 H 215.81 L 209.67 C 209.74 V 1138639, Jul 2, 5:30 AM O 215.25 H 215.81 L 209.67 C 209.74 V 1138639, Jul 2, 9:30 PM O 212.735 H 219.015 L 210.7464 C 216.12 V 1155165, Jul 3, 5:30 AM O 212.735 H 219.015 L 210.7464 C 216.12 V 1155165, Jul 6, 9:30 PM O 215.95 H 215.95 L 208.27 C 208.46 V 1218492, Jul 7, 5:30 AM O 215.95 H 215.95 L 208.27 C 208.46 V 1218492, Jul 7, 9:30 PM O 211.86 H 212 L 205.65 C 205.7 V 1156880, Jul 8, 5:30 AM O 211.86 H 212 L 205.65 C 205.7 V 1156880, Jul 8, 9:30 PM O 204.86 H 206.75 L 198.93 C 200.36 V 1947888, Jul 9, 5:30 AM O 204.86 H 206.75 L 198.93 C 200.36 V 1947888, Jul 9, 9:30 PM O 198.92 H 201.01 L 196 C 198.91 V 1657327, Jul 10, 5:30 AM O 198.92 H 201.01 L 196 C 198.91 V 1657327, Jul 10, 9:30 PM O 197.63 H 199.98 L 194.3694 C 199.15 V 1133120, Jul 11, 5:30 AM O 197.63 H 199.98 L 194.3694 C 199.15 V 1133120, Jul 13, 9:30 PM O 199.33 H 210.87 L 197.74 C 209.03 V 2259821, Jul 14, 5:30 AM O 199.33 H 210.87 L 197.74 C 209.03 V 2259821, Jul 14, 9:30 PM O 200.335 H 202 L 189.395 C 191.95 V 3902309, Jul 15, 5:30 AM O 200.335 H 202 L 189.395 C 191.95 V 3902309, Jul 15, 9:30 PM O 191.21 H 198.58 L 186.025 C 197.24 V 2067350, Jul 16, 5:30 AM O 191.21 H 198.58 L 186.025 C 197.24 V 2067350, Jul 16, 9:30 PM O 198.26 H 209.64 L 194.6725 C 208.92 V 1872778, Jul 17, 5:30 AM O 198.26 H 209.64 L 194.6725 C 208.92 V 1872778, Jul 17, 9:30 PM O 208.6 H 215.79 L 203.4 C 205.99 V 1151283, Jul 18, 5:30 AM O 208.6 H 215.79 L 203.4 C 205.99 V 1151283, Jul 20, 9:30 PM O 204.08 H 205.65 L 199.62 C 199.95 V 963088, Jul 21, 9:30 PM O 199.47 H 203.6999 L 198.59 C 202.78 V 284509

From high -53.75%Drawdown -74.14%Stored labels 176

Price move attribution

Large moves, explained residuals, and research gaps

17 stored large-move attributions

High-priority unexplained moves10Open moves where direct company catalyst evidence is missing or weak.

Direct labels4Company-specific filings, disclosures, earnings, guidance, or direct source links.

Theme driver days0Moves benchmarked against a matched thematic basket before peer residuals.

Review workbench

High-priority unexplained moves

8 shown

Nov 4, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +43.97% daily move. · Unexplained High Priority · generated

Move +43.97%Macro / market +2.05%Sector after macro +1.36%Industry after sector +1.20%Residual after context +39.36%

Review priority 100 · Source rank 0 · Volume 12.9x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +2.05% · Sector +1.36% · Industry +1.20% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +39.36%

Sep 28, 2022

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +39.85% daily move. · Unexplained High Priority · generated

Move +39.85%Macro / market +2.68%Sector after macro -1.31%Industry after sector +0.19%Residual after context +38.30%

Review priority 100 · Source rank 0 · Volume 16.7x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +2.68% · Sector -1.31% · Industry +0.19% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +38.30%

Jun 7, 2021

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +38.34% daily move. · Unexplained High Priority · generated

Move +38.34%Macro / market +0.18%Sector after macro +0.49%Industry after sector +0.50%Residual after context +37.16%

Review priority 100 · Source rank 0 · Volume 15.4x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +0.18% · Sector +0.49% · Industry +0.50% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +37.16%

Mar 21, 2019

No relevant stored event for down moveNo relevant stored event label passed the company move-attribution threshold for this -29.23% daily move. · Unexplained High Priority · generated

Move -29.23%Macro / market +1.39%Sector after macro -1.55%Industry after sector -0.91%Residual after context -28.17%

Review priority 100 · Source rank 0 · Volume 19.1x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +1.39% · Sector -1.55% · Industry -0.91% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual -28.17%

Oct 22, 2019

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +26.11% daily move. · Unexplained High Priority · generated

Move +26.11%Macro / market -0.42%Sector after macro +0.64%Industry after sector +1.10%Residual after context +24.79%

Review priority 100 · Source rank 0 · Volume 11.9x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro -0.42% · Sector +0.64% · Industry +1.10% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +24.79%

Feb 5, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +17.50% daily move. · Unexplained High Priority · generated

Move +17.50%Macro / market +1.04%Sector after macro -0.10%Industry after sector +0.62%Residual after context +15.95%

Review priority 95 · Source rank 0 · Volume 6.5x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +1.04% · Sector -0.10% · Industry +0.62% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +15.95%

Aug 7, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +10.10% daily move. · Unexplained High Priority · generated

Move +10.10%Macro / market +0.20%Sector after macro -0.09%Industry after sector +0.04%Residual after context +9.94%

Review priority 82 · Source rank 0 · Volume 4.3x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +0.20% · Sector -0.09% · Industry +0.04% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +9.94%

Dec 29, 2021

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.46% daily move. · Unexplained High Priority · generated

Move +9.46%Macro / market +0.25%Sector after macro -0.04%Industry after sector -0.01%Residual after context +9.26%

Review priority 80 · Source rank 0 · Volume 5.0x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Decomposition: Macro +0.25% · Sector -0.04% · Industry -0.01% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +9.26%

Stored labels

Accepted price-move labels

8 shown

Date	Label	Move	Residual after context	Scope	Confidence
Mar 13, 2020	Broad market moved +8.09% with this stock	+13.51%	+12.00%	Macro	58%
Oct 1, 2025	Closest peers moved +3.80% with this stock	+10.09%	+6.29%	Peer	58%
Mar 17, 2020	Broad market moved +5.76% with this stock	+8.38%	+4.88%	Macro	58%
Nov 9, 2020	Barron's Picks And Pans: Apollo Global, Biogen, Biden Picks And More - Benzinga	-28.17%	+0.16%	Direct	65%
Mar 12, 2020	Broad market moved -9.19% with this stock	-8.62%	-2.65%	Macro	58%
Feb 6, 2026	Biogen Inc. 10-K: 10-K	+8.53%	+0.66%	Direct	90%
Feb 6, 2026	Biogen Inc. 8-K: 8-K	+8.53%	+0.66%	Direct	74%
Feb 6, 2026	NASDAQ:BIIB 8-K current report items 2.02,9.01	+8.53%	+0.66%	Direct	94%