The exact date of the Ethereum Shanghai upgrade remains unconfirmed—but it's rapidly approaching. As anticipation builds, discussions around potential sell pressure have resurfaced. Yet few have examined this topic through a rigorous data-driven lens. My earlier model on validator withdrawals is now outdated and no longer reflects current dynamics. This article presents an updated analysis grounded in the latest protocol mechanics and on-chain data.
To fully grasp the insights shared here, readers should understand the basics of Ethereum withdrawal credentials. If terms like 0x00 and 0x01 withdrawal credentials are unfamiliar, they will be clearly explained in the sections that follow.
Key Changes Since Previous Models
Since earlier projections, several critical updates have reshaped how withdrawals function:
- The process for switching between two types of withdrawal credentials has been formally defined.
- All withdrawals now require a 0x01 withdrawal credential, which early validators did not originally set.
- Adding a 0x01 credential is rate-limited to 16 operations per block.
- Validators with 0x01 credentials automatically undergo partial withdrawals, also capped at 16 per block.
- Full withdrawals remain unchanged, but 0x00 validators must first update their credentials to 0x01 before initiating any withdrawal.
For deeper technical context, consider reviewing:
- ETH Withdrawals FAQ
- Christine Kim’s comprehensive research via Galaxy Digital
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Who Holds Which Withdrawal Credentials?
Many analysts assume both validator types—those with 0x00 and 0x01 credentials—behave similarly. This assumption is flawed.
On Ethereum’s genesis, all initial validators were created without 0x01 credentials, skewing early data. Today, about 20% of new validators still lack 0x01 credentials, likely due to outdated setup guides or institutional delays in updating infrastructure.
The most significant adopter of the 0x01 standard is Lido, a leading liquid staking protocol. Approximately 88% of Lido’s validators use 0x01 credentials, and Lido controls over 60% of all validators configured for automatic withdrawals.
While some may raise concerns about centralization risks, Lido’s widespread adoption of 0x01 credentials actually reduces short-term sell pressure. Because Lido typically reinvests staking rewards into new validator deposits to optimize yield on its staked ETH derivatives (e.g., stETH), its validators will consume partial withdrawal slots without immediately selling the ETH.
Moreover, most of Lido’s validators were activated early, particularly during a surge in spring 2022 when stETH traded at a discount. As a result, Lido’s 0x01 validators are older on average and have accumulated more rewards eligible for automatic partial withdrawal.
When we calculate average accumulated rewards:
- Lido 0x01 validators: ~1.23 ETH per validator
- Non-Lido 0x01 validators: ~1.06 ETH per validator
In contrast, 0x00 credential holders are dominated by long-standing "genesis" validators who’ve accrued rewards for over two years. As of February 4, 2023:
- Average reward balance: 2.47 ETH
- Top performers: up to 4.9 ETH in base rewards—available for partial withdrawal once credentials are updated
This structural imbalance plays a crucial role in shaping post-upgrade withdrawal patterns.
Post-Shanghai Upgrade: Partial Withdrawal Dynamics
Once the Shanghai fork activates, Ethereum begins processing partial withdrawals for validators with 0x01 credentials. Simultaneously, validators with 0x00 credentials can begin submitting requests to switch to 0x01—also processed at 16 per block.
Initially, the system will favor existing 0x01 validators—especially Lido’s—because they’re already eligible for automatic payouts.
Let’s examine projected outcomes at key intervals:
First Block (T+0)
- 16 total validators processed
- 9.95 Lido validators → 13.19 ETH withdrawn
- 6.05 non-Lido 0x01 validators → 6.89 ETH withdrawn
- Zero 0x00 validators processed (must wait for credential update queue)
After 1,000 Blocks (~3h20m)
14.83 initial 0x01 validators processed
- Lido: 9.22 → 12.22 ETH
- Non-Lido: 5.61 → 6.39 ETH
- 1.17 former 0x00 validators (now updated) → 3.10 ETH
After 10,000 Blocks (~1 day 9 hours)
- Initial 0x01 validators: only 7.5 processed (queue thinning)
- Former 0x00 validators: 8.5 processed → 22.57 ETH withdrawn
At this stage, ex-genesis validators dominate the withdrawal flow, significantly increasing the volume of ETH released per block.
Peak withdrawal rates depend heavily on how quickly 0x00 validators update their credentials. In the most extreme scenario—where all switch immediately—the peak occurs around 70 hours post-upgrade, reaching approximately 37.34 ETH per block, of which only 3.01 ETH comes from Lido.
Crucially, the peak does not occur immediately—a fact often missed by simplistic models predicting instant sell-offs.
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Realistic Sell Pressure Scenarios
Based on behavioral trends, it's reasonable to expect between 25% and 50% of 0x00 validators to request credential updates shortly after Shanghai activates. Under this range:
- Peak withdrawal rates occur on the second day
- High-volume outflows persist for roughly two days
Even in worst-case estimates:
- First-day partial withdrawals (excluding Lido): ~110,000 ETH
- This is far below naive predictions of over 400,000 ETH on day one
Given that non-Lido 0x01 validators include centralized exchanges and other institutional players, many may only sell portions of their rewards—or none at all.
Furthermore, because Lido and similar protocols will occupy withdrawal slots without necessarily dumping ETH, the automated partial withdrawal system acts as a buffer, absorbing queue capacity and reducing immediate market impact.
Pre-Shanghai Trends and Their Implications
Current data trends suggest ongoing shifts before the upgrade:
- New validator deposits continue, though new 0x00 setups are increasingly rare.
- The average balance of existing 0x00 validators keeps rising—projected to reach 2.5–2.6 ETH.
- Lido’s 0x01 validator count grows steadily, pushing their average reward balance toward 1.3–1.4 ETH.
- Non-Lido 0x01 validator growth accelerates, applying downward pressure on average balances (~1.0–1.1 ETH).
These trends imply that the maximum withdrawal rate could be ~10% higher than current estimates.
Importantly, increased adoption of 0x01 credentials before Shanghai will help flatten the withdrawal curve: extending the duration of sell pressure while slightly lowering its peak intensity.
Full Withdrawals: A Different Mechanism
Full withdrawals operate independently and remain subject to Ethereum’s validator churn limits.
At launch, the churn limit quotient is expected to be around 8, allowing roughly 57,600 ETH per day to exit via full withdrawals.
A dual queue system will form:
- One side for new validator deposits
- One for exiting validators
This creates a balancing effect—the network won’t process exits faster than it can onboard new entrants, effectively capping daily full withdrawals.
While some long-term holders may choose to exit entirely, others may see Shanghai as a risk-reduction milestone and increase staking participation. The net effect on validator count is uncertain in the short term—but over time, continued interest in staking suggests growth remains likely.
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Frequently Asked Questions (FAQ)
Q: What are 0x00 and 0x01 withdrawal credentials?
A: 0x00 refers to legacy validators who haven’t set up withdrawal destinations. 0x01 indicates a validator with a specified Ethereum address for receiving withdrawn funds—required for both partial and full withdrawals.
Q: Will there be a massive ETH dump after Shanghai?
A: Unlikely. Withdrawals are rate-limited (16 per block), and many top holders (like Lido) reinvest rewards rather than sell. Early outflows may reach ~110K ETH/day—significant but manageable.
Q: How fast can I withdraw my staked ETH after Shanghai?
A: Partial rewards (excess over 32 ETH) are processed within days if you have a 0x01 credential. Full withdrawals depend on queue length and churn limits—potentially weeks during peak demand.
Q: Does Lido control too much of Ethereum staking?
A: Lido manages over 30% of staked ETH, raising decentralization concerns. However, its reuse of rewards helps stabilize post-upgrade supply dynamics by reducing immediate sell pressure.
Q: Can I change my withdrawal credential before Shanghai?
A: Yes—validators can submit updates now, but processing begins only after the upgrade activates.
Q: How does the withdrawal queue work?
A: Two parallel queues exist—one for credential changes (max 16/block), another for processing partial withdrawals (also max 16/block). Both must clear before full withdrawals proceed.
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