US500-BTC Perpetual Futures | Trade the S&P 500 in Bitcoin on Roxom

A new bridge between global equities and Bitcoin capital markets, in Roxom.

Introduction

The dollar era is losing its shine. Inflation erodes purchasing power, central banks distort interest rates, and investors everywhere are re-evaluating how they measure wealth. Meanwhile, Bitcoin continues to rise as the neutral, borderless reserve asset of the digital age.

What if you could access the world’s most important equity index, the S&P 500, without ever touching fiat?

That’s exactly what US500-BTC, Roxom’s BTC-settled perpetual futures contract, makes possible.

US500-BTC allows traders to go long or short on U.S. equities directly in Bitcoin, with profits, losses, and collateral all denominated in BTC. It’s part of Roxom’s vision to build the first global capital markets system in Bitcoin terms, where you can trade gold, oil, or equities using the world’s hardest money.

1. What Is US500-BTC?

US500-BTC is a perpetual futures contract, allowing traders to hold exposure indefinitely while paying or receiving periodic funding.

Unlike traditional S&P 500 futures on CME (which settle in USD and have fixed expirations), US500-BTC tracks the value of the S&P 500 through the SPDR S&P 500 ETF (SPY), but the contract is quoted and settled entirely in Bitcoin.

Each contract represents a notional value of 10 × SPY points, and P&L is realized in BTC, no banks, no fiat rails, and no off-ramps.

Core specifications:

When U.S. markets are closed, the SPY leg is frozen at the last official print, while the BTC component continues to update in real time. This allows 24/7 trading even outside Wall Street hours.

2. Why It Matters

The S&P 500 is the benchmark for global equity performance, a proxy for U.S. corporate strength and investor sentiment worldwide. Yet access to it has traditionally required fiat capital, regulated brokers, and limited trading windows.

US500-BTC changes that. It gives global traders exposure to the S&P 500 using Bitcoin as the base currency, breaking the dependence on the dollar and traditional financial rails.

This shift matters for two big reasons:

1. Bitcoin as unit of account: For the first time, equity performance can be measured in BTC terms, not USD. Traders can ask, “How is the S&P 500 doing relative to Bitcoin?”, revealing a new perspective on global wealth.
2. Global, borderless access: With only BTC collateral, anyone can hedge or speculate on U.S. equities 24/7, no banks, intermediaries, or FX conversions required.

It’s a fundamental evolution: from dollar-denominated markets to Bitcoin-denominated capital markets.

3. Trading Opportunities

Hedging BTC Exposure

If you’re long Bitcoin and expect equities to outperform, longing US500-BTC allows you to balance your exposure. Conversely, if you think Bitcoin will rally relative to equities, shorting US500-BTC expresses that relative view.

Example:

Suppose BTC trades at $100 000 and SPY = 500 points. If the S&P 500 rises 10 % while BTC stays flat, a long US500-BTC position gains 10 % in BTC terms. If BTC rises 10 % while equities stay flat, a short position profits.

Diversification and Arbitrage

BTC-denominated perpetuals open new relative-value plays:

• Long BTC-Gold, short US500-BTC
• Long BTC-Oil, short US500-BTC
• Cross-exchange basis trades exploiting funding-rate differentials

All without holding a single dollar.

24/7 Global Access

Traditional equity markets sleep; Bitcoin doesn’t. US500-BTC gives traders continuous access to U.S. equity exposure around the clock, even when NYSE or CME are closed. That matters for global investors in Asia, Europe, or Latin America who previously faced timezone or access limitations.

4. Future Outlook

The launch of US500-BTC marks more than just another contract, it represents a paradigm shift.

Bitcoin as The Measuring Stick

Just as the dollar once underpinned global trade, Bitcoin is becoming the new collateral foundation for digital markets. BTC-settled derivatives like US500-BTC allow a new generation of investors to measure performance in Bitcoin terms, not fiat.

Institutional Integration

As traditional institutions integrate crypto infrastructure, BTC-denominated contracts could evolve into mainstream portfolio tools. The ability to trade, hedge, and benchmark portfolios directly in BTC may redefine multi-asset strategy construction.

Macro Evolution

Looking ahead:

• Inflation and monetary debasement could push more capital into Bitcoin as a store of value.
• Equities face margin pressure in higher-rate environments, while BTC remains structurally scarce.
• US500-BTC becomes a clean way to express those macro differentials.

Expansion of BTC-Based Indices

US500-BTC is only the start. Roxom plans to extend Bitcoin-denominated markets across commodities, bonds, and global indices, building a full Bitcoin-based capital market system.

Conclusion

US500-BTC bridges two worlds: traditional equity benchmarks and Bitcoin-native capital. It lets traders measure, hedge, and speculate on U.S. equities through the lens of Bitcoin.

For the first time, you can hold equity exposure, calculate returns, and manage margin, all in BTC.

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