Polkadot (DOT) Surges 8.87% as Supply Cap Vote Sparks Rally Above $4.50
James Ding Sep 18, 2025 12:24
DOT price reaches $4.54 with strong bullish momentum after community approves 2.1 billion token supply cap, breaking key resistance levels on heavy volume.

Quick Take
• DOT currently trading at $4.54 (+8.87% in 24h) • Polkadot's RSI at 63.83 shows healthy bullish momentum without overbought conditions • Community approval of 2.1 billion token supply cap creates fundamental shift from inflationary to deflationary model
What's Driving Polkadot Price Today?
The DOT price surge stems directly from last week's groundbreaking Referendum 1710, where Polkadot's community voted to cap the total supply at 2.1 billion tokens. This fundamental shift from an inflationary to a fixed supply model has created immediate scarcity dynamics that traders are pricing in aggressively.
The timing couldn't be better for DOT holders. Just five days before the supply cap announcement, Polkadot broke above the crucial $4 resistance level on September 10th, gaining 3.8% amid speculation about major protocol developments. The subsequent supply cap confirmation has now validated that bullish breakout, pushing DOT price to current levels of $4.54.
This supply cap represents more than just a technical change - it fundamentally alters Polkadot's economic model to mirror successful deflationary cryptocurrencies. The community's decisive action signals strong governance and long-term vision, factors that institutional investors increasingly value when evaluating blockchain projects.
DOT Technical Analysis: Bullish Signals Emerge
Polkadot technical analysis reveals multiple bullish indicators aligning perfectly with the fundamental news catalyst. DOT's RSI currently sits at 63.83, placing it in the neutral-to-bullish zone with significant room for upward movement before reaching overbought territory.
The MACD histogram shows a positive 0.0425 reading, confirming bullish momentum for Polkadot. More importantly, the MACD line at 0.1343 sits well above the signal line at 0.0918, indicating the current rally has strong technical backing rather than being a mere news-driven spike.
Polkadot's moving averages paint an increasingly bullish picture. The current DOT price of $4.54 trades above all key moving averages: the 7-day SMA at $4.35, 20-day SMA at $4.07, 50-day SMA at $3.96, and even the critical 200-day SMA at $4.05. This alignment suggests the recent supply cap news has triggered a genuine trend reversal rather than temporary volatility.
The Bollinger Bands analysis shows DOT trading at 94.71% of the band width, very close to the upper band at $4.60. While this indicates strong momentum, it also suggests DOT resistance near current levels may require consolidation before the next leg higher.
Polkadot Price Levels: Key Support and Resistance
Based on Binance spot market data, Polkadot support levels are well-defined after the recent rally. The immediate DOT support sits at $3.61, representing the previous resistance that should now act as support. Below that, Polkadot strong support emerges at $3.43, which aligns with the 50-day moving average zone.
For DOT resistance levels, traders should watch the $4.63 level closely. This price point represents both immediate and strong resistance according to technical analysis, coinciding almost perfectly with the Bollinger Band upper limit at $4.60. A clean break above $4.63 could trigger the next rally phase toward the psychological $5.00 level.
The DOT/USDT trading pair shows healthy volume at $47.6 million on Binance, suggesting institutional participation in the current move. This volume profile supports the validity of current Polkadot support levels and gives confidence that any pullback will find buyers.
Should You Buy DOT Now? Risk-Reward Analysis
The risk-reward profile for DOT depends heavily on your trading timeframe and risk tolerance. For swing traders, the combination of fundamental catalysts and technical momentum creates an attractive setup, particularly with DOT price holding above the $4.42 pivot point.
Conservative traders should wait for a pullback to the $4.07-$4.20 zone, where the 20-day SMA and previous resistance converge. This area offers better risk-reward ratios while still capturing the supply cap narrative's long-term benefits.
Aggressive traders might consider current levels acceptable, given that Polkadot's RSI at 63.83 allows room for further gains. However, setting stop-losses below $4.20 is crucial, as a break of this level would invalidate the bullish Polkadot technical analysis.
The supply cap fundamentals provide strong long-term support for higher DOT price targets. Unlike many cryptocurrency rallies driven purely by speculation, this move has genuine tokenomic improvements backing it. This reduces the likelihood of sharp reversals seen in momentum-only plays.
Conclusion
DOT price action reflects a perfect storm of positive fundamentals and technical momentum. The supply cap implementation creates lasting value while current technical indicators support continued upside in the next 24-48 hours. Traders should monitor the $4.63 DOT resistance level closely, as a break higher could target $5.00. However, given the recent rally's magnitude, some consolidation near current levels wouldn't be surprising before the next move higher.
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