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On-Chain Analysis · 60-second explainer

SegWit vs Legacy: What TX Format Reveals About Whales

On-chain analysis · 60 seconds

Key takeaways

  1. Legacy txs cost more fees, so whales using them signal older wallets
  2. SegWit addresses are 30% cheaper—savvy holders adopt them first
  3. TX format reveals trader behavior: legacy = long-term HODLers
  4. Mixing both formats shows institutional portfolios under active management

Full explainer

Why do some Bitcoin whales pay way more in fees than others? It's all in the transaction format they choose. Legacy transactions are the old standard—they're bigger, heavier, and cost roughly thirty percent more in fees. When you spot a whale using legacy format, you're probably looking at someone who's held Bitcoin since before twenty seventeen, someone who just doesn't move their coins often. SegWit addresses? Those are the modern choice. Cheaper, faster, and adopted by traders who actively manage their portfolios. But here's the real signal: whales mixing both formats are sophisticated players—think institutions balancing security with efficiency. One format reveals a sleeping giant; the other reveals an active trader.

Originally posted on YouTube: https://youtube.com/shorts/VGCxcbsAUkQ

Glossary terms used in this explainer

@ 0:13

Spot

The market for immediate delivery of an asset at the current price. Opposite of "futures" (where you trade a contract for future delivery) or "perpetuals" (perpetual-futures with funding rates). When we say "BTC price" without qualifier we mean spot.

@ 0:13

Whale

Transactions of 500 BTC or larger but below the Mega Whale threshold (1,000 BTC). Common for large traders, OTC desks, exchange operations, and treasury management. Most actionable tier for daily flow analysis.