| Market Hours Strategy | SGX runs on Singapore Time (SGT, UTC+8, no daylight saving). Before the T (day) session, review where %R closed on the previous T+1 (night) session and flag instruments sitting in overbought/oversold zones; overnight US and onshore-China moves are usually already priced into the night session. • T-session open (FTSE China A50 ~09:00, Nikkei 225 ~07:30 SGT) can spike %R on opening gaps as the contract reprices the overnight news flow; let the first 15-30 minutes settle before acting on a reversal signal. • Mid T-session is the cleanest window for %R reversal and momentum signals; the China A50 tracks the onshore A-share session (Shanghai/Shenzhen), which itself breaks for lunch (~11:30-13:00 China time), so expect a midday liquidity lull. • The T+1 (night) session runs into the early hours (A50 to ~05:15 SGT next day) and overlaps European and US hours; %R signals here can be clean on directional global moves, but thinner liquidity means wider whipsaws - size down. • Around the T-session close, %R reversals are common as intraday positioning unwinds ahead of the rollover into the night session; manage or flatten intraday positions if you do not intend to hold across the session break. |
| Sgx Specific | FTSE China A50 is SGX's flagship index future and the offshore proxy for mainland China A-shares; 14-period %R with -80/-20 works, but China policy-driven volatility means extremes are hit quickly - consider -85/-15 for confirmation. • Nikkei 225 (USD- and JPY-denominated) is highly liquid and can move fast on yen and Bank of Japan headlines; %R reaches extremes quickly, so confirm with volume and avoid counter-trend signals during strong Tokyo-hours momentum. • SGX MSCI Singapore (SiMSCI) futures are the closest proxy for trading the domestic Singapore market (the Straits Times Index is the headline cash benchmark); liquidity is thinner than A50/Nikkei, so prefer standard -80/-20 and require confirmation. • FTSE China A50 = US$1 × index (US$5 tick); Nikkei 225 (USD) = US$5 × index; SiMSCI = S$100 × index (S$5 tick); SGX Iron Ore = 100 tonnes per lot (US$1 per tick). Factor the differing currency and notional of each contract into position sizing. • SGX index and commodity futures trade in a T (day) and T+1 (night) session, giving near-24-hour coverage; positions held across the session break face overnight gap risk, so maintain adequate margin. The CME-SGX Mutual Offset System lets Nikkei 225 positions be opened on one exchange and closed on the other. |
| Sgx Commodities | SGX TSI Iron Ore (62% Fe CFR China) is the global benchmark iron-ore derivative and SGX's signature commodity; %R reversals are reliable, but the contract is driven by China steel demand and property-policy headlines - watch for trend persistence. • SGX (via SICOM) sets the global pricing benchmark for natural rubber (TSR20, RSS3); rubber %R can trend strongly on supply and weather news in Thailand/Indonesia, so filter with ADX. • SGX Forward Freight Agreements (Capesize, Panamax, Supramax dry-bulk) are volatile and seasonal; %R extremes can persist - use a longer period (21) or wait for -90/-10 extremes. • SGX coking and thermal coal and petrochemical contracts are tied to the same China industrial complex as iron ore; cross-check %R signals against the broader China demand picture. • SGX commodities trade nearly 24 hours (Iron Ore T session ~07:25-19:55, T+1 ~20:15-05:15 SGT); the session overlapping China and European hours often shows the cleanest %R signals. Note: crude oil, gold, natural gas and silver are not SGX's core futures - those sit primarily on CME/ICE. |
| Currency Futures | USD/SGD is the natural domestic pair. Because MAS manages the Singapore dollar via the exchange rate (not interest rates), the SGD is deliberately smoothed within its policy band - %R moves slowly, and -75/-25 may suit better than -80/-20. • SGX USD/CNH (offshore renminbi, US$100,000 contract) is SGX's flagship FX future and a key China-risk gauge; it correlates tightly with the FTSE China A50 and the onshore CNY fixing. • SGX INR/USD (Indian rupee) FX futures remain listed on SGX even though SGX's Nifty equity-index futures migrated to GIFT City (NSE IX) in July 2023; rupee %R correlates with broad EM-Asia FX sentiment. • MAS reviews policy quarterly (January, April, July, October) and may adjust the slope, width or centre of the S$NEER band; around these statements and major China data, FX %R can gap. MAS acts to smooth excessive currency volatility, so sharp single-event spikes are less common than in reactively managed FX regimes. • Asian-EM FX %R on SGX tracks the US Dollar Index and, for USD/CNH, mainland China policy and the daily PBoC fixing. |
| Tax Implications | Singapore imposes NO capital gains tax on individuals; if your futures trading is genuinely investment in nature, gains are generally not taxable. • IRAS applies the 'badges of trade' test (frequency, holding period, leverage, profit motive, whether it resembles a business). Frequent, systematic, leveraged trading is likely assessed as TRADING INCOME, taxed at progressive resident rates (up to 24% from YA2024) or at 17% if traded through a Singapore company. • There is no Securities Transaction Tax and no stamp duty on futures in Singapore; costs are brokerage and SGX clearing fees. GST (9% from 1 Jan 2024) applies to brokerage and platform fees, not to trading gains. • Document %R entry/exit levels and trade rationale; if assessed as trading income, capital losses are NOT deductible while trading losses generally are - classification matters. • There is no quarterly advance-tax regime; individuals assessed as traders file Form B (self-employed) annually, and companies file Estimated Chargeable Income (ECI). Seek advice on your specific residency status and classification. |
| Institutional Flows Correlation | The FTSE China A50 is the primary offshore barometer of mainland China sentiment; it leads/lags the onshore CSI 300 and Shanghai Composite and often sets the tone for the rest of Asia. • When onshore China markets are shut (Lunar New Year, Golden Week), the A50 night session becomes the main price-discovery venue, so the China open can gap to where the A50 already moved - watch %R across the session boundary. • Singapore is an institutional and international hub and does not publish a fixed daily foreign-versus-domestic institutional flow figure the way some markets do; instead watch global risk-on/off, USD/CNH, China PMI/GDP/property data and Japan flows (Nikkei via the CME-SGX link). • Key catalysts include China monthly data and the March 'Two Sessions', Japan economic releases, the quarterly MAS statements and US macro overnight; align %R signals with the prevailing regional regime. • SGX index futures expire quarterly (Mar, Jun, Sep, Dec); %R can whipsaw around expiry and rollover, so reduce size or require extra confirmation that week. |
Both measure momentum, but they differ in calculation and behavior. Williams %R shows where price closes relative to the high-low range (position-based). RSI compares average gains to average losses (momentum-based). %R is faster and more reactive, ranging from -100 to 0. RSI is smoother, ranging from 0 to 100. %R is better for quick timing; RSI is better for divergence and smoother signals.
The standard period is 14, which works for most situations. For scalping (5-min charts), use 10-period for faster signals. For intraday (15-min), use 14-period. For swing trading (daily), use 14-21 period. Shorter periods give more signals but more noise; longer periods are smoother but slower. Match the period to your trading timeframe.
Common reasons: (1) Entering when %R enters the zone instead of when it leaves, (2) Trading counter-trend signals in strong trends (ADX > 30), (3) No confirmation (candlestick, volume, support/resistance), (4) Stop loss too tight - use swing high/low or 1.5x ATR. Williams %R is fast and can give false signals; filtering is essential.
Yes, in strong trends, %R can stay at extreme levels for many bars. In a strong uptrend, price keeps making new highs, keeping %R near 0 (overbought). In a strong downtrend, price keeps making new lows, keeping %R near -100 (oversold). This is why ADX filtering is crucial - avoid counter-trend %R signals when ADX > 30.
The -50 midline represents equilibrium - price in the middle of its recent range. Uses include: (1) Momentum confirmation - crossing above -50 after leaving oversold confirms bullish momentum, (2) Exit signal - crossing against your position suggests momentum has ended, (3) Trend filter - %R consistently above -50 indicates uptrend, below indicates downtrend.
Use ADX and EMA together. ADX < 20: Ranging, take both %R directions. ADX 20-30: Moderate trend, prefer trend direction signals. ADX > 30: Strong trend, only trade WITH trend (oversold longs in uptrend, overbought shorts in downtrend). Additionally, check EMA slope - only take longs when price above upward-sloping EMA, shorts when below downward-sloping EMA.
Analyze %R across multiple timeframes for better signals. Higher timeframe (daily) %R sets the momentum context - above -50 = bullish bias. Trading timeframe (hourly) provides entry signals - zone exits aligned with daily bias. Lower timeframe (15-min) fine-tunes entry timing. Best trades have alignment across all timeframes.
Extreme levels (-90/-10) indicate price in the top/bottom 10% of range vs 20% for standard levels. Signals from extremes have higher probability (60-70% vs 50-55%) but occur less frequently. Trade-off: fewer signals but better quality. Best for patient traders who prefer quality over quantity. Can combine: wait for extreme, enter on standard level cross.
Double bottom + %R bullish divergence = high probability long. Double top + %R bearish divergence = high probability short. %R oversold + key support level = stronger signal. %R zone exit + confirming candlestick (hammer, engulfing) = entry confirmation. Stacking confirmations improves win rate from 50-55% to 60-70%.
Quarterly contract expiry weeks (SGX index futures expire in Mar, Jun, Sep and Dec) have unusual price action due to rollover and gamma effects. %R can whipsaw significantly. Options: (1) Reduce position size 50%, (2) Use extreme levels (-90/-10) only, (3) Require extra confirmation (divergence + pattern + volume), (4) Avoid %R signals entirely during expiry week. Similar caution for major news events.
Adaptive %R adjusts the lookback period based on current volatility (ATR). Formula: Adaptive Period = Base Period × (Current ATR / Average ATR). When volatility is high, period lengthens to reduce noise. When low, period shortens for sensitivity. Bounded between 7-28. This adapts %R to changing market conditions automatically, improving signal quality.
Algorithm steps: (1) Identify swing lows/highs in price using local min/max detection, (2) Record %R values at those swing points, (3) Compare slopes: If price lows are falling (negative slope) but %R lows are rising (positive slope), bullish divergence exists. Requires robust swing point detection to avoid false readings in noisy data.
Portfolio %R Score = Sum of (%R × Position Weight) across all positions. It measures net momentum positioning. Near -50 = balanced. Near -20 = portfolio overbought (reduce long exposure or add shorts). Near -80 = portfolio oversold (reduce short exposure or add longs). Prevents concentrated directional bets and helps with portfolio-level risk management.
Yes. Train a classifier on signal features: %R value, %R slope, ADX level, volume ratio, time since last signal, price pattern present. Target: signal success (1) or failure (0). Use probability output to filter entries (only trade if P > 0.6) or size positions (higher probability = larger size). Requires programming skills and continuous model retraining.
Research directions: (1) Smoothed %R: Apply 3-5 period EMA to %R for less noise, (2) %R Bands: Bollinger-style bands around %R itself, (3) Multi-period composite: Weighted average of %R(7), %R(14), %R(21), (4) Volume-weighted %R: Weight HH/LL calculation by volume, (5) %R Rate of Change: Momentum of %R itself. Each addresses different weaknesses. Backtest thoroughly.
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