Weiss Ratings, an independent U.S. ratings agency, has issued a detailed defense of its controversial decision to assign Bitcoin a C+ grade. The firm published a 14-page report after its initial cryptocurrency rankings triggered sharp backlash from parts of the crypto community, including social media criticism and a cyberattack that temporarily disrupted the Weiss website.
The agency said the follow-up report was intended to explain the data and methodology behind its conclusions. At the center of the controversy was a simple question from many Bitcoin supporters: why did the market’s leading cryptocurrency fail to earn a top-tier grade?
A Rating System Built for Both Investors and Developers
According to Weiss founder Martin D. Weiss, the answer depends largely on perspective. From an investor’s standpoint, he argued, an A-rated cryptocurrency would need to be an asset that “rarely crashes.” In the current market, he said, no such cryptocurrency exists. At the same time, he acknowledged that developers often view ratings differently, preferring an assessment focused on technical quality and real-world performance rather than short-term price behavior.
To bridge those viewpoints, Weiss said its model combines several sub-models. These include Risk and Reward, adapted from the firm’s stock and ETF ratings, along with Fundamentals and Technology, which were designed specifically for cryptocurrencies. The result is a framework that does not judge digital assets solely by market price, but also does not ignore the significance of volatility for investors.
Why Bitcoin Scored Lower Than Many Expected
In the Risk and Reward category, Weiss argued that Bitcoin investors had recently earned less than investors in some altcoins while still being exposed to extreme volatility. In other words, Bitcoin was not seen as offering a sufficiently attractive balance between return potential and risk under the agency’s methodology.
On Fundamentals, Weiss gave Bitcoin credit for its broad adoption and established security. Even so, the agency said those strengths were offset by notable operational constraints. The report pointed to network congestion, estimating Bitcoin’s throughput at just four transactions per second, while transaction fees were described as running at roughly $10 per transaction. Those factors, in Weiss’s view, weaken the user experience and limit Bitcoin’s effectiveness as a scalable payment network.
The report also highlighted miner concentration as a concern. Weiss said the top five miners controlled around 70% of total hashpower, which it considered a negative from the standpoint of decentralization and network resilience. For supporters who see Bitcoin’s distributed architecture as one of its defining advantages, that claim touched on a particularly sensitive issue.
Technology and Governance Also Weighed on the Grade
Weiss was similarly critical in its Technology assessment. The agency argued that Bitcoin lacks the governance structure needed to implement upgrades quickly, making it harder for the network to adapt in a rapidly evolving industry. In its view, governance friction has contributed to Bitcoin falling behind more agile competitors in some areas of technical development.
This point is especially important because it shows the rating was not based on market behavior alone. While volatility played a role, Weiss explicitly rejected the accusation that it had over-weighted price swings. Instead, the firm said its model simply reflects an “inconvenient truth” about crypto markets: sharp price fluctuations remain a core risk factor that cannot be dismissed when evaluating assets for investors.
Backlash Revealed the Tension Inside Crypto Markets
The reaction to the original ranking illustrated a broader divide within the cryptocurrency ecosystem. For many Bitcoin advocates, assigning only a fair grade to the sector’s most recognized asset seemed like a misunderstanding of its historical significance, security model, and market leadership. For Weiss, however, market prominence was not enough to justify a higher rating if practical and structural weaknesses remained unresolved.
The intensity of the response also showed how emotionally charged crypto asset rankings can become. Weiss said it faced a flood of insults from cryptocurrency figures and opinion leaders online, and the company’s website was temporarily taken down by a cyberattack. That sequence of events underscored the difficulty of publishing independent judgments in a market where communities often identify strongly with particular tokens or networks.
Weiss Left the Door Open to an Upgrade
Despite standing firmly behind the C+ grade, Weiss did not present the rating as permanent. The agency stressed that its scores are updated continuously and can change as conditions evolve. If Bitcoin’s price behavior becomes more stable or if network improvements successfully address speed and efficiency constraints, the firm said an upgrade would be possible.
That caveat is important because it frames the rating not as a final verdict on Bitcoin’s long-term viability, but as a snapshot of its condition under a specific analytical model. In other words, Weiss is not arguing that Bitcoin lacks value; it is arguing that, based on current evidence and investor-oriented criteria, Bitcoin does not yet deserve an elite grade.
The report ultimately offers a clear explanation of the agency’s thinking: Bitcoin remains influential and secure, but it is held back by volatility, network congestion, high fees, hashpower concentration, and governance challenges. Whether the crypto market agrees is another matter. But by publishing the methodology behind its decision, Weiss has made clear that it intends to defend its rankings even when the reaction is hostile.