Gold-Silver Ratio Strategy

The gold-silver ratio measures how many ounces of silver are worth one ounce of gold. It is Gold price per troy ounce divided by Silver price per troy ounce, a clean dimensionless number. A ratio of 64 means it takes 64 ounces of silver to buy one ounce of gold. The modern range is roughly 50 to 85 with a mean near 60 to 65. As of mid-June 2026 it sits near 63.6.

Gold and silver are both precious metals with overlapping demand drivers. When one becomes too expensive relative to the other, market forces tend to correct as investors and fabricators shift toward the cheaper metal. This creates a mean-reversion tendency, though silver's heavy industrial demand can push the centre of the ratio lower over time.

When the ratio is high, above 85, silver is cheap relative to gold. You take Long Silver and Short Gold positions, profiting if silver outperforms and the ratio falls. On COMEX this is Long SIL and Short MGC value-matched, or Long a silver ETF such as PSLV against Short a gold ETF such as PHYS.

Value matching creates a metal-neutral and, for a Canadian, a currency-neutral position. If the silver value is about 130,000 USD and the gold value is about 130,000 USD, equal-percentage moves in both cancel and the long and short USD exposures offset. Mismatched values create a directional and an FX bias, defeating the hedge.

Ratio trades typically last 20 to 60 days for mean reversion from a statistical extreme, shorter if the ratio reverts quickly and longer if it is gradual. A 45 to 60 day time stop prevents capital being tied up indefinitely. The 2025 to 2026 episode reverted unusually fast once silver's deficit narrative took hold.

Z-score equals Current Ratio minus Mean divided by Standard Deviation. Use a regime-anchored mean near 65 and a standard deviation near 10 rather than a trailing window skewed by the 2025 spike. A z of 2 or higher is a significant extreme. Example: a current ratio of 88 with mean 65 and SD 10 gives a z of 2.3, a strong high signal.

Normal Gold-Silver correlation is 0.75 to 0.90. A warning level is below 0.70, requiring closer monitoring and possibly tighter stops. The exit level is below 0.55 to 0.60 because hedge effectiveness is compromised. Calculate a 30-day rolling correlation; for a Canadian, a breakdown also reopens USD/CAD exposure on the larger leg.

Enter 50 percent at the initial signal when the ratio reaches the threshold, add 25 percent if it extends further and add the final 25 percent on further extension or strong confirmation. This improves the average entry if the extreme persists, which matters because the ratio overshot toward 100 in 2025. Never add if the trade is losing significantly.

Roll both legs on the same day before First Notice Day and the delivery window to maintain the hedge and avoid assignment. Check the basis in the new contracts and roll to the same expiry month for both legs to avoid basis risk. Plan the roll 5 to 7 days before the notice period while liquidity is still good. The ETF route has no rollover.

Futures preserve the spread mechanics, leverage and tight pricing but require a US futures account, USD margin and rollover, and cannot sit in registered accounts. TSX bullion ETFs (PHYS, PSLV, CGL, SVR) are CAD-friendly, allow fine share-level value matching, have no rollover and can sit in a TFSA or RRSP, though active trading risks a business-income reassessment. Many Canadians use micros for tactical trades and ETFs for longer holds.

Options provide defined risk through long calls and puts. A synthetic ratio position using a silver call and a gold put creates ratio exposure with a known maximum loss, and protective options on a futures spread hedge tail risk, valuable after the ratio overshot toward 100. Buy options when implied volatility is low during ratio consolidation. COMEX options settle in USD; TSX ETF options keep everything in CAD.

Regime-shift indicators include the ratio breaking a 10-year range, long-term moving-average crossovers such as the 200-day crossing the 500-day, fundamental shifts such as silver's solar, EV and grid demand and a persistent supply deficit, and sustained correlation changes. In mid-2026 the live question is whether silver's deficit has permanently lowered the ratio's centre toward 60 to 65 or below.

Target a win rate above 60 percent and a profit factor above 2.0. Backtest on 10-plus years with 70 percent in-sample for optimization and 30 percent out-of-sample for validation, including the 2020 spike and the 2024 to 2026 round trip, net of commissions, fees, slippage and the USD/CAD conversion. Use Monte Carlo for robustness, and discount out-of-sample numbers earned during the unusually clean 2025 reversion.

Allocate 10 to 20 percent of the total portfolio to ratio strategies, with gold-silver at 60 to 70 percent of that sleeve and a maximum of 2 to 3 concurrent ratio trades. The strategy has low correlation with the broad market and is near USD/CAD neutral, though note a TSX index already carries gold-miner and commodity beta. Rebalance monthly and take profits to hold the target allocation.

When a regime shift is confirmed, pause the existing strategy, analyse the new regime's mean and standard deviation, update the signal thresholds and use a regime-specific lookback. Resume with adapted parameters and accept that the old centre may no longer apply. In practice, anchor the working mean toward the post-2000 norm rather than a trailing window that still carries the 2025 elevation.