Silver-Gold Ratio Strategy

The Gold-Silver ratio measures how many ounces of Silver equal the value of one ounce of Gold. Internationally it is calculated as the Gold price per troy ounce divided by the Silver price per troy ounce. A ratio of 70 means it takes 70 ounces of Silver to equal one ounce of Gold. As of 2026 the ratio is around 58-62, with a long-term mean near 70.

Gold and Silver are both precious metals with similar demand drivers. When one becomes too expensive relative to the other, market forces tend to correct this. Investors arbitrage the difference, buyers shift to the cheaper metal, and producers adjust output. This creates a mean reversion tendency, though strong structural trends such as Silver's industrial-demand boom can shift the mean itself.

When the ratio is high, above 85, Silver is cheap relative to Gold. Take Long Silver and Short Gold positions. This profits if Silver outperforms Gold causing the ratio to fall. Example is Long spot XAG/USD or COMEX Silver and Short spot XAU/USD or COMEX Gold with matched values.

Value matching creates a market-neutral position. If the Silver value is 9000 USD and the Gold value is 9000 USD then equal percentage moves in both cancel out. Mismatched values create a directional bias. If the Silver leg is larger you have net long precious metals exposure defeating the hedge purpose. At a ratio of R, R ounces of Silver value-match 1 ounce of Gold.

Ratio trades typically last 20-60 days for mean reversion from statistical extremes. They are shorter if the ratio reverts quickly and longer if reversion is gradual. A maximum hold of 60 days is a typical time stop to prevent capital being tied up indefinitely. Recent reversions from extreme levels have often taken 30-50 days.

Z-score equals Current Ratio minus Mean divided by Standard Deviation. Use a 252-day rolling mean and standard deviation rather than a fixed long-term figure because the regime shifts. A z-score of 2 or higher indicates a significant extreme. Example shows a current ratio of 96 with a mean of 70 and an SD of 13 giving a z-score of 2.0 which is a significant signal.

Normal Silver-Gold correlation is 0.75-0.90. The warning level is below 0.70 requiring increased monitoring and possibly tighter stops. The exit level is below 0.55-0.60 as hedge effectiveness is compromised. Calculate a 30-day rolling correlation for monitoring, and watch industrial-demand news closely because it is the main driver of Silver decoupling.

Enter 50 percent at the initial signal when the ratio reaches the threshold. Add 25 percent if the ratio extends further. Add the final 25 percent on further extension or strong confirmation. This improves your average entry if the extreme continues before reverting, which has been common recently. Never add if the trade is losing significantly.

Exit 50 percent when the ratio reaches halfway to target. Example entry at 90 with a target at 72 means halfway is 81 for the first exit. Let the remaining 50 percent run to the full target or a trailing stop. This locks profit while allowing for larger moves, which can be substantial when an extreme unwinds.

In Singapore the gold leg may be on SGX or COMEX while the silver leg is on COMEX or spot, so you must manage two venues and possibly two currencies. Prefer using the same instrument type for both legs, ideally spot XAU/USD and XAG/USD, to simplify execution and value matching. If using futures, match expiry months and roll both legs together; if using spot, budget for daily financing carry.

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. Protective options on futures hedge tail risk. They require lower capital than futures. In Singapore, Gold and Silver options are accessed mainly via COMEX GC and SI options through international brokers; note that elevated Silver implied volatility raises premium cost.

Regime shift indicators include the ratio breaking 10-year historical extremes, long-term moving average crossovers such as the 200-day over the 500-day, fundamental demand shifts such as Silver's multi-year supply deficit and surging solar and EV demand, and sustained correlation changes. The 2020 spike to 123 and the 2025 spike above 100 followed by compression toward the high 50s are clear recent examples requiring strategy adaptation.

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, and be sure the test window includes the 2020 and 2025 outliers. Use Monte Carlo simulation for robustness. Consistent performance across different market regimes confirms validity, and expect larger drawdowns in high-volatility regimes.

Allocate 10-20 percent of the total portfolio to ratio strategies. Gold-Silver should be the primary ratio at 60-70 percent of the ratio allocation. Maximum 2-3 concurrent ratio trades. Very low correlation with equities provides diversification benefit. Rebalance monthly and take profits to maintain the target allocation, and factor minor SGD/USD FX exposure if trading a USD account.

When a regime shift is confirmed, pause the existing strategy. Analyze the new regime characteristics for mean and standard deviation. Update signal thresholds for the new environment, leaning on rolling statistics. Use a regime-specific lookback period. Resume trading with adapted parameters. Accept that old parameters may no longer apply; for example the long-term mean of 70 may be too high if Silver's structural strength persists.