Privacy Coins Zano and Firo Trend as Demand for Untraceable Transactions Grows
Zano (ZANO) and Firo (FIRO) both appeared on CoinGecko’s trending list on May 15, placing two privacy-focused cryptocurrency assets in a rare moment of simultaneous attention. ZANO trades at approximately $11.53 with a $176 million market cap and gained around 2% in the past 24 hours.
FIRO trades near $1.26 with a market cap of $23.4 million and gained approximately 4.2% over the same period. Neither token generates high absolute trading volume, with ZANO at $1.88 million and FIRO at $492,000 in 24-hour volume.
But their joint appearance on a trending list typically dominated by large-cap assets and meme coins points to targeted retail interest in the privacy coin category.
What ZANO and FIRO Are
Zano is a privacy-focused blockchain ecosystem launched in 2019. It uses ring signatures and stealth addresses to make transactions untraceable, meaning outside observers cannot identify the sender, recipient, or amount involved in a given on-chain transfer.
Ring signatures work by bundling a real transaction with a set of decoy signatures, making it cryptographically infeasible to determine which key authorized the actual transfer. Zano also features a hybrid proof-of-work and proof-of-stake consensus system, which distributes network security across both miners and token stakers.
Firo, formerly known as Zcoin, has been developing privacy technology since 2016.
It pioneered the Lelantus privacy protocol, which allows users to destroy coins and redeem them as new coins with no transaction history, achieving a clean break in the on-chain audit trail. Firo subsequently developed Spark, an upgraded privacy protocol designed to offer similar burn-and-redeem mechanics with improved scalability.
Both ZANO and FIRO sit outside the top 200 by market cap for most of the year, making their appearance together in trending data a meaningful signal of category-specific rotation.
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Background
Privacy coins had a difficult 2022 to 2024 period. Several centralized exchanges delisted Monero, Zcash, and other privacy assets citing regulatory pressure from financial compliance teams in Europe, Japan, and South Korea.
The Financial Action Task Force, the international anti-money-laundering standards body, pushed member countries to apply enhanced due diligence to privacy coin transactions. That regulatory headwind drove institutional and exchange liquidity out of the category.
The narrative shifted gradually in 2025 as a broader rollback of prescriptive crypto regulation began in the United States following the change in administration. Solana (SOL) ecosystem privacy tools and Ethereum-based mixing protocols also saw renewed development activity, normalizing the conversation around financial privacy as a legitimate user need rather than an exclusively illicit one.
Zcash, which holds a substantially larger market cap than either ZANO or FIRO, also appeared on CoinGecko’s trending list during this scan, indicating category-wide interest rather than ZANO or FIRO-specific catalysts.
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Why Both Tokens Are Trending Now
No single disclosed event triggered the joint trending appearance for ZANO and FIRO on May 15. The pattern is consistent with a narrative rotation trade: investors already positioned in larger assets look for underexplored thematic exposure and identify privacy coins as a category that has not yet run proportionally to broader market gains. Bitcoin (BTC) has gained over 2% in the 24 hours to May 15, trading near $81,327.
A rising Bitcoin price historically draws speculative capital into smaller-cap thematic assets, and privacy coins represent one of the oldest and most distinct crypto narratives available.
The simultaneous appearance of Zcash alongside ZANO and FIRO in trending data reinforces the category rotation thesis. If the move were ZANO or FIRO-specific, Zcash would not be present.
The fact that three different privacy coin projects are trending at the same time points to a common investor thesis driving the search and trading activity.
What to Watch
For ZANO specifically, the key metric is whether daily trading volume can sustain above $2 million, a threshold that would indicate more than short-term speculative spikes. For FIRO, the threshold is lower given the smaller market cap, but any volume above $1 million per day would represent a meaningful departure from baseline.
Privacy coin trends have historically faded quickly when broader market sentiment shifts, so the duration of this interest window matters more than its peak intensity. Any regulatory development that affects privacy technology broadly, in either direction, would be a significant catalyst for the entire category.
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