Gold Spot (GC=F) with Bitcoin Overlay

Gold as a monetary asset

Gold is the longest-running monetary asset on earth. Used as currency for ~3,000 years across most civilisations; held by central banks as reserves since the gold standard's gradual abandonment 1971; and held by individuals as a hedge against fiat-currency debasement, banking-system risk, and geopolitical instability.

The supply side is the key feature. Global mined gold supply is roughly 215,000 tonnes accumulated over all of human history. New mine production adds roughly 3,500 tonnes a year, well under 2 percent annual supply growth. There is no central authority that can issue gold; physical bullion is bearer-instrument; and the asset has no counterparty risk.

Three demand sources move the price:

• Investment demand. ETFs (GLD, IAU, GOLD on ASX), physical bullion, futures positioning. Roughly 25 percent of annual demand. Most reactive to real interest rates and inflation expectations.
• Central bank reserves. Roughly 20 percent of annual demand and rising. Emerging-market central banks (China, Russia, Turkey, India) have been net buyers since 2010 in a multi-decade reserve diversification trend away from USD.
• Jewellery and industrial. Roughly 55 percent of annual demand. Slower-moving structural floor.

Gold vs Bitcoin

Gold and Bitcoin occupy the same portfolio role: a non-sovereign monetary alternative to fiat currency, held to hedge debasement, banking-system risk, and geopolitical instability. The Bitcoin community explicitly markets BTC as 'digital gold' for this reason.

Six structural similarities:

• Hard supply cap (gold by physics, Bitcoin by code at 21 million).
• No central authority issuing more.
• No counterparty risk in self-custody.
• Bearer instrument when held outside the banking system.
• Globally fungible and recognised.
• Inflation hedge over multi-decade windows.

Three structural differences:

• Liquidity and portability. Bitcoin moves at the speed of the internet. Gold moves at the speed of armoured trucks. For globally-mobile capital this is a meaningful advantage.
• Volatility. On the daily closes behind this chart, gold's realised volatility has run about 19 percent annualised over the past 20 years; Bitcoin's has run about 60 percent since 2020. Bitcoin is leveraged exposure to the same thesis.
• Track record. Gold has 5,000 years of monetary use; Bitcoin has been running since 2009. The asymmetry is the upside argument for BTC and the downside argument against.

Cycle behaviour is similar but timing differs. Gold tends to inflect first when monetary uncertainty rises (on daily closes it peaked at 1,889 in August 2011, reached 2,069 in August 2020 and crossed 4,000 in October 2025). Bitcoin moves with higher amplitude. From the first trading day of 2024 to Bitcoin's October 2025 peak, gold rose about 92 percent and Bitcoin about 177 percent, a clear synchronised debasement-positioning episode. They then split: Bitcoin fell back while gold kept rising into January 2026.

Why AU investors watch gold

• GOLD / PMGOLD exposure. The Global X Gold ETF (GOLD, 0.40 percent fee) and Perth Mint Gold (PMGOLD, 0.15 percent fee) are the dominant AU retail vehicles. Both quote in AUD; both track USD spot gold plus the AUD/USD currency layer.
• Mining-equity exposure. Newcrest (until Newmont acquired it in November 2023), Northern Star Resources, Evolution Mining, and the ASX gold-miner sub-index are AU-listed gold proxies with operational leverage to the spot price.
• AUD-gold double hedge. AUD/USD typically falls during macro shocks (risk-off USD strength) while gold rises. That cushions the AUD gold price in sharp shocks, but the hedge is weaker than it sounds: over the past 20 years weekly AUD/USD and gold returns have correlated at about +0.3, because both lean on commodity demand and a weak US dollar.
• SMSF allocation. Gold ETFs and physical bullion (allocated, audited) are common SMSF holdings. The 50 percent CGT discount for 12+ month holdings applies as it does for any CGT asset. The 2026 budget CGT framework changes affect gold the same as crypto and other CGT assets.

Methodology

1. Source. Yahoo Finance, ticker GC=F (COMEX gold futures front-month adjusted close) for gold and BTC-USD for the Bitcoin overlay.
2. Endpoint. https://query1.finance.yahoo.com/v8/finance/chart/GC=F?interval=1d (public chart endpoint, no API key required).
3. Why futures rather than spot. GC=F tracks the LBMA spot benchmark closely on daily close and has a clean continuous series from August 2000. Yahoo's spot feed is less consistently maintained for historical depth.
4. Bitcoin overlay alignment. The BTC-USD series is aligned to each gold trading day; only days with a gold close are kept.
5. Log scale. Both axes are log-scaled so percentage moves across the full history are visually comparable.
6. Refresh and fallback. An automated refresh runs twice a day (07:30 and 13:30 Sydney) and the site rebuilds when the data changes. If Yahoo is unreachable, the last good data is kept.

Data source and download (Yahoo Finance chart API)

The chart reads Yahoo Finance's public chart endpoint, which works in a browser or script with no API key:

https://query1.finance.yahoo.com/v8/finance/chart/GC=F?interval=1d&range=max

The range parameter accepts 1mo, 1y, 5y, or max; interval accepts 1d, 1wk, or 1mo. The response is JSON with a timestamp array plus open, high, low, close, and adjusted close arrays. Swap the ticker in the path for any Yahoo symbol: SI=F for silver futures, GLD for the SPDR gold ETF, BTC-USD for Bitcoin, AUDUSD=X for the currency layer. Yahoo rate-limits unauthenticated requests, so cache responses rather than polling.

Related tools

• S&P 500 with BTC overlay - the global equity benchmark.
• AUD/USD spot - the currency layer on top of USD-gold.
• M2 Money Supply - the debasement variable both gold and BTC track.
• CPI Inflation - the headline inflation rate.
• USD Trade-Weighted Index - the inverse-correlated variable for gold.
• Bitcoin Log Regression (AUD) - BTC cycle positioning.

Frequently asked questions

About the author

Govind Satoshi

Former Institutional Trader. Founder, SatoshiMacro.

Traded allocated institutional capital at a Sydney proprietary trading firm.