Abstract
Using regulatory data with trader identifiers, we analyze participants in Bitcoin futures (BTC) contracts traded on the Chicago Mercantile Exchange (CME). Two primary trader types emerge:
- Concentrated traders: Hold nearly exclusively BTC futures.
- Diversified traders: Use BTC futures to diversify broader futures portfolios.
The prevalence of these groups shifts over time, with notable changes around mid-2020. We also explore connections between BTC and other futures markets via common holdings and analyze the micro BTC contract’s distinct trader composition.
JEL classification: G12, G19
Keywords: Bitcoin futures, Concentrated traders, Diversified traders, Micro Bitcoin futures
I. Introduction
Cryptoassets, especially Bitcoin, have captivated investors since 2009 due to their volatility. Yet, little is known about Bitcoin futures traders, as most trading occurs on unregulated exchanges without identity disclosure. This study fills the gap by examining CME’s regulated BTC futures market using proprietary regulatory data.
Key Analyses:
- Trader Motivations: Identify concentrated vs. diversified traders.
- Market Composition: Track shifts in trader dominance (e.g., post-mid-2020).
- Market Connections: Link BTC to other futures via shared trader holdings.
- Micro BTC Contract: Compare its trader profile to the standard contract.
II. Bitcoin Derivatives Markets Overview
Regulated vs. Unregulated Markets:
- CME BTC Futures: Launched in 2017, cash-settled, 5 BTC/contract, 35% margin.
- Perpetual Contracts: Unregulated swaps with high leverage (up to 200:1), no expiry.
Why Trade CME BTC?
- Regulatory safety (CFTC oversight).
- Lower leverage (3:1) reduces liquidation risks.
- U.S. accessibility vs. banned unregulated exchanges.
III. Data
Unique identifiers in our dataset (Dec 2017–Sep 2021) enable:
- Tracking trader positions across futures markets.
- Analyzing long/short open interest by group.
- Excluding pre-ETF effects (data ends before Oct 2021).
IV. Market Characteristics
- Open Interest: Surged post-May 2020 (Figure 1).
- Notional Value: Rose sharply, driven by both price increases and trader influx (Figures 2–3).
V. Trader Portfolio Profiles
Three Trader Types:
Concentrated Traders:
80% BTC exposure.
- Small portfolios (mean: $7.3M in 2020 → $19.5M in 2021).
Diversified Traders:
- <20% BTC exposure.
- Large portfolios (mean: $4.7B in 2020 → $16.8B in 2021).
Hybrid Traders:
- 20–80% BTC exposure.
- Net short positions historically.
Gold vs. BTC: Gold traders show less bimodal portfolio distribution (Figures 4–5).
VI. Trader Dynamics Over Time
- Post-2020 Shift: Diversified traders dominate short positions (60% OI by 2021).
- Non-Reportables: Hold ~20% long OI, suggesting smaller investors (Figure 8).
VII. BTC Connections to Other Markets
Common Holdings: Gold, crude oil, S&P E-Mini (Table II).
Anton Polk Measure: Cross-holdings surged post-2020 (Figure 9), aligning with diversified trader growth.
VIII. Micro BTC Contract
- Launch: May 2021, 0.1 BTC/contract, lower reporting threshold (2.5 BTC).
Trader Composition:
- Concentrated traders: 80–100 active, but hold minor OI.
- Diversified traders: Hold 60% long, 90% short OI (Figures 10–13).
- Impact: Attracted new entrants without cannibalizing main BTC contract.
IX. Conclusion
- Diversified traders now dominate CME BTC, especially in short positions.
- Micro BTC: Appeals to smaller traders but remains dwarfed by diversified activity.
- Future Research: Effects of Bitcoin ETFs (post-2021) on market composition.
FAQ Section
Q1: Who dominates Bitcoin futures trading?
A: Diversified traders (hedge funds, institutions) hold most short positions, while concentrated traders (retail/small investors) focus on long exposure.
Q2: Why did CME BTC open interest surge in 2020?
A: COVID-19 spurred retail interest, and institutional adoption grew alongside Bitcoin’s price rise.
Q3: Is the micro BTC contract replacing the standard one?
A: No—it attracts new traders but hasn’t reduced activity in the main contract.
Q4: How is BTC connected to gold futures?
A: Shared holdings by diversified traders link the markets, measured via cross-position metrics.
Q5: What’s unique about CME’s BTC futures?
A: Regulatory oversight, lower leverage, and U.S. accessibility distinguish it from unregulated perpetual swaps.