medium SHARE_COUNT_MISREPORT

AVGO: balanceOf() is 1.001257319x away from share-equivalents

subject AVGO (0x156E175DD063a8cE274C50654eF40e0032b3fbcF) · methodology assay-rh-v0.2.0 · detected 2026-09-21T20:48:10.000Z

AVGO reports uiMultiplier() = 1001257318662278132 (1.001257319). Under ERC-8056 a corporate action moves this multiplier rather than balances, so balanceOf() returns tokens, not share-equivalents. Share-equivalents = balance * uiMultiplier() / 1e18. Any surface presenting balanceOf() as a share count understates it by 0.1256% (the true count is 1.0013x the raw balance). Token value computed as balance * Chainlink feed price is unaffected, because the feed is already multiplier-adjusted.

Impact

12.57 bps · 0.1256%

totalSupply raw 570.8575 tokens vs 571.5752 share-equivalents (delta 0.7177). Presenting the raw balance as a share count understates by 0.1256%; equivalently the true count is 1.0013x the raw.

Evidence — 2/2 citations re-fetched and byte-compared

mismatched 0 · pruned 0 · verified 2026-09-21T20:48:15.660Z

uiMultiplier() == 1001257318662278132

chain 4663 · block 69096070 · uiMultiplier()
0x156E175DD063a8cE274C50654eF40e0032b3fbcF

0x0000000000000000000000000000000000000000000000000de52e39f7a00bf4

totalSupply() == 570857480240000000000

chain 4663 · block 69096070 · totalSupply()
0x156E175DD063a8cE274C50654eF40e0032b3fbcF

0x00000000000000000000000000000000000000000000001ef23d2dbee7c5e000

Reproduce this yourself:

cast call 0x156E175DD063a8cE274C50654eF40e0032b3fbcF "uiMultiplier()" \
  --block 69096070 \
  --rpc-url https://rpc.mainnet.chain.robinhood.com

Note: the public RPC prunes state within roughly 1k–10k blocks, so an older block may no longer be served. That makes a citation unchecked here, not disproven — ASSAY reports those two cases separately and never publishes a finding whose citation contradicts chain state.