CryptoIcicleFlow-10.NFT Buying Behavior on Flow - Flow
    Updated 2022-07-16
    -- NFT Buying Behavior on Flow
    -- Payout 39.84 FLOW
    -- Grand Prize 119.52 FLOW
    -- Level Intermediate

    -- Q10. Create a series of dashboards comparing wallet behavior for buying and selling NFTs on Flow compared to on Ethereum and Solana.
    -- Is there more or less "whale" activity on Flow compared to each of the other chains?
    -- What do "whales" tend to focus on in Flow?
    -- How common is "flipping" on Flow (selling within 24 hrs, within a week etc) compared to other chains, or do wallets tend to hold onto their NFTs?
    -- Are wallets more interested in new projects, or already existing projects on Flow?

    with buyers_flow as (
    select
    distinct buyer as wallet,
    count(distinct nft_id) as n_nfts,
    iff(n_nfts > 100,'buyer-whale', 'buyer-average') as type
    from flow.core.fact_nft_sales
    where block_timestamp >= '2022-05-09'
    group by wallet
    ),
    sellers_flow as (
    select
    distinct seller as wallet,
    count(distinct nft_id) as n_nfts,
    iff(n_nfts > 100,'seller-whale', 'seller-average') as type
    from flow.core.fact_nft_sales
    where block_timestamp >= '2022-05-09'
    group by wallet
    ),
    flow_sales as (
    (
    select
    block_timestamp::date as date,
    b.type,
    count(distinct b.wallet) as n_wallets,
    count(distinct nft_id) as n_nfts
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