---
title: "Bitcoin Drops 3.7% to Test Glassnode's $81,500 ETF Holding Cost Basis"
description: "The level previously served as support throughout October after halting bitcoin's market rally in May."
url: https://basisdesk.news/news/bitcoin-tests-81500-etf-cost-basis
published: 2026-10-22T17:04:48.650Z
modified: 2026-10-22T17:04:48.650Z
section: Bitcoin
author: Basis Desk Newsroom (AI-generated, source-verified)
sentiment: bearish
tickers: [BTC]
tags: [bitcoin, etf, glassnode, on-chain, market-metrics]
license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice.
---

# Bitcoin Drops 3.7% to Test Glassnode's $81,500 ETF Holding Cost Basis

The level previously served as support throughout October after halting bitcoin's market rally in May.

## At a glance

- **What happened:** Bitcoin fell 3.7% to test an estimated $81,500 ETF holding cost calculated by Glassnode as of Oct. 19.
- **Why it matters:** The $81,500 level acted as resistance against bitcoin's May rally before serving as support during October.
- **Who is affected:** Investors and market participants tracking Bitcoin ETF on-chain holding cost thresholds.
- **What's next:** No next step announced.
- **Primary source:** [Bitcoin Falls 3.7% to Test $81,500 ETF Cost Basis](https://thedefiant.io/news/markets/bitcoin-falls-3-7-to-test-81-500-etf-cost-basis) — thedefiant.io

## Key points

- Bitcoin fell 3.7% to test the $81,500 ETF cost basis calculated by Glassnode [1].
- The $81,500 level provided market support in October after capping a bitcoin rally in May [1].
- Glassnode's estimated ETF holding cost calculation was dated Oct. 19 [1].

## Editorial remark

- **Context:** The $81,500 level capped price advances during May before turning into an operational support floor in October, according to Glassnode records.
- **Impact:** Traders and market participants tracking Bitcoin ETF on-chain data face a retest of the estimated cost basis established on Oct. 19.
- **Watch:** Updated on-chain holding cost calculations from Glassnode following the Oct. 19 benchmark.

$BTC dropped 3.7% to challenge an estimated exchange-traded fund cost basis level of $81,500 [1]. According to on-chain analytics firm Glassnode, that specific ETF holding cost figure was calculated on Oct. 19 [1]. At the time of writing, Bitcoin was trading at $81,313, reflecting a 3.6% decrease over the prior 24-hour period as the broader digital asset market capitalization stood at $2.69 trillion.

The $81,500 threshold has served as a technical pivot point across multiple trading cycles [1]. Glassnode's metrics show the holding cost capped bitcoin's price rally during May [1]. Subsequently, the exact price marker transitioned into a support zone during October trading activity [1]. The move follows related institutional volatility where [Bitcoin dipped to $81,400 as tech shares slid](https://basisdesk.news/news/bitcoin-dips-81400-tech-stocks-options-bearish), testing market participants after [Bitcoin retreated from a run near $85,000](https://basisdesk.news/news/bitcoin-retreats-after-run-near-85000).

## On-Chain ETF Metrics Under Scrutiny

Glassnode's published figures focus on Bitcoin ETF on-chain metrics, recording the historical acquisition thresholds associated with funds [1]. The Oct. 19 holding cost computation marks the boundary where recent October price action found buyers after reversing the May expansion [1]. 

No subsequent update to the Oct. 19 holding cost figure was released in the published data [1]. Observers remain focused on whether price action maintains stability around the $81,500 benchmark that previously formed October's technical floor [1].

## Sources

1. [Bitcoin Falls 3.7% to Test $81,500 ETF Cost Basis](https://thedefiant.io/news/markets/bitcoin-falls-3-7-to-test-81-500-etf-cost-basis) — thedefiant.io, 2026-10-22

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Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai