Others who are more experienced in trading have made their thoughts known, and I’m sure the @NSRBuyback account will adhere to any motion specifying different repurchase price percentages during buyback weeks. My analysis is just from observation.
I will say that I suspect our analysis of trading patterns is biased, because we’ve mainly observed Thursday (market price) or Friday (market premium) sales. In the beginning we had a few sells at 80% and 90% market discounts, but those have largely disappeared with broader awareness of the buybacks.
This can likely be attributed to the fact that the share buyback pool is growing each week in USD value. If the buyback pool is growing each week, and only 10% of excess Tier 4 BTC are being used, most shareholders are gambling that higher prices will be available many weeks from now. It may feel like the network is not acquiring as many NSR for burning as would be expected when this is occurring.
However, consider what will likely happen if the buyback pool begins to decrease in size each week. Shareholders who want to guarantee their NSR are repurchased will begin selling at 90%, then 80%, and maybe even 70% of the share price if they think short-term peak NSR pricing has already been reached. Casual traders who gambled on the price of NSR continuing to climb may sell at a slight loss to prevent deeper losses. In this situation, the network will acquire more NSR than it expects.
The market’s expectation of the buyback pool size may be the strongest predictive factor of NSR pricing right now. So far we have gotten the benefit (higher public NSR price) at the cost of fewer shares, but we would receive a different benefit (more repurchased shares) at the cost of a lower public price if the market expectations of buyback pool size changed.
Relevant:
A firm will announce that it will repurchase some shares in the open market from time to time as market conditions dictate and maintains the option of deciding whether, when, and how much to repurchase. Open-market repurchases can span months or even years. […] Open-market stock repurchases which greatly add to the long-term demand for shares in the market are likely to affect prices as long as the repurchase operations continue.
If shareholders wanted a more stable price, there are solutions that could dampen the volatility. One option would be to introduce a greater time uncertainty factor to trading by scheduling buyback weeks only once per month, using perhaps 25% of all excess BTC in Tier 4 instead of 10%. This would eliminate the certainty speculators might feel in “knowing” that the price is likely to go even higher during the next buyback period, and might cause them to buy and sell NSR closer to our offered market price. The trade-off would be less trading activity during non-buyback weeks.