Trend Intensity Index

Trend Strength Indicators Intermediate United Kingdom FTSE100 UK100 BP HSBA VOD BARC LLOY AZN SHEL RIO

Identifies and measures trend strength for directional trading

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Quick Reference

Strategy Type Trend Strength Measurement / Confirmation Indicator
Market Outlook Identifies and measures trend strength for directional trading
Risk Profile Confirmation tool - reduces risk by filtering weak trends
Reward Profile Improves trend-following returns by confirming strong trends
Time Horizon Swing to position trading (days to weeks)
Iv Environment Any - price-based indicator
Breakeven Depends on primary trading system used with TII

Payoff Profile

Oscillator measuring trend strength from 0-100 based on price position relative to moving average over lookback period

United Kingdom Market Details

Primary Instruments FTSE 100 index, UK single stocks (BP, HSBA, VOD, BARC, AZN, SHEL, RIO)
Fca Compliance Standard trading; options overlay requires appropriateness assessment
Contract Size £10 per point for FTSE 100 CFDs/spread bets; 1,000 shares for equity options
Trading Hours 8:00 AM - 4:30 PM GMT for LSE; futures/CFDs may have extended hours
Data Requirements Daily OHLC data; close prices relative to moving average
Settlement CFDs and spread bets settle daily; options at expiry
Spread Betting Tax-free profits for UK residents - ideal for TII trend following
Stamp Duty 0.5% on share purchases; exempt for CFDs, spread bets, and options
Tii Periods 30-day (standard), 20-day (faster), 60-day (slower)

Frequently Asked Questions

Is TII the same as RSI?

No. While both oscillate 0-100, they measure different things. RSI measures momentum and can indicate overbought/oversold conditions. TII measures trend CONSISTENCY - how often price is above vs below the moving average. High TII (>80) means STRONG trend, not overbought.

What TII settings should I start with?

Start with standard settings: 30-period moving average and 30-day lookback. Use 80/20 thresholds for strong trend signals and 50 as centerline. These work well for most swing trading applications.

Should I sell when TII reaches 80?

No! This is a common mistake. TII > 80 means the trend is STRONG, not exhausted. Unlike RSI, high TII suggests trend continuation, not reversal. Stay with the trend when TII is high. Consider selling when TII FALLS from high levels, especially crossing below 50.

Can TII be used for day trading?

Yes, but use shorter settings. Try 10-20 period MA with matching lookback on hourly or 4-hour charts. Day trading TII will be more volatile. The concept remains the same - high TII = strong trend, low TII = strong downtrend.

How do I use TII with my existing trading system?

Use TII as a filter. Before taking any long signal, check that TII > 50 (stronger filter: > 60). Before any short signal, check TII < 50. This filters out weak signals in trendless markets and improves your system's win rate.

How does TII divergence work?

TII divergence works like other oscillator divergences. Bullish divergence: price makes lower low, TII makes higher low (downtrend weakening). Bearish divergence: price makes higher high, TII makes lower high (uptrend weakening). Divergence warns of potential reversal but isn't immediate signal - wait for confirmation.

Should I use TII or ADX for trend strength?

Use both for complete picture. ADX measures pure trend strength regardless of direction - high ADX means strong trend but doesn't tell you which way. TII is directional - above 50 is bullish, below is bearish. Together: ADX > 25 + TII > 70 = confirmed strong uptrend.

Why use TII with moving average crossovers?

MA crossovers produce many false signals in ranging markets. TII filters these out by confirming the trend is real. Only take bullish MA crossovers when TII > 50 (or 60 for stronger filter). Backtests typically show 15-25% improvement in Sharpe ratio with TII filter.

What's the best TII exit strategy?

Depends on your style. Aggressive: exit when TII drops below 60-70 (captures more profit). Standard: exit when TII crosses below 50 (stays in trends longer). Scaled: exit 50% at first weakening, 50% at centerline. Test to see which works best for your instruments.

Can I use multiple TII periods?

Yes. Dual TII system uses fast TII (20-period) for timing and slow TII (60-period) for trend. Fast crossing above slow = bullish. This is similar to MACD logic but applied to trend strength measurement. Reduces noise while capturing major moves.

How do I optimize TII parameters without overfitting?

Test a grid of MA periods (20-60) and thresholds (70/30 to 85/15). Use walk-forward validation: optimize on 60% of data, validate on 20%, final test on 20%. Look for 'robust zones' where neighboring parameters perform similarly. Avoid single 'optimal' settings.

How should TII guide options strategy selection?

TII > 80: Directional bullish (calls, bull spreads). TII < 20: Directional bearish (puts, bear spreads). TII 40-60: Neutral strategies (iron condors, butterflies). Use TII level to select strikes - MA level becomes key support/resistance for spread strikes.

How do I implement TII in systematic portfolio management?

Daily scan: Classify all stocks by TII regime. Allocate: Overweight strong TII (>80 or <20), standard for moderate, avoid neutral. Track transitions. Exit when TII crosses centerline against position. Monitor portfolio average TII for overall market bias assessment.

What's the value of dynamic TII thresholds?

Different instruments have different TII distributions. Some rarely exceed 75, others routinely hit 90. Dynamic thresholds use percentiles (e.g., 80th/20th percentile TII over lookback) to adapt to each instrument. Improves signal quality for instruments with unusual TII behavior.

How does TII momentum add value?

TII momentum (rate of change) measures if trend strength is accelerating or decelerating. TII may be at 85 (strong) but TII momentum negative (weakening). This gives early warning before TII actually drops. Falling TII momentum while TII still high = prepare for exit.

Related Strategies

ADX (Average Directional Index)
Aroon Indicator
Elder Impulse System
Qstick Indicator
Moving Average Crossover
Breakout Trading
Chandelier Exit
RSI

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