พันธบัตรที่ให้ผลตอบแทนติดลบ ใครจะซื้อ ?

stdClass Object ( [priceLogAPIId] => 1 [createDate] => 2025-08-02T00:34:15.683 [bidPrice99] => 53312 [bidPrice99Diff] => 12 [offerPrice99] => 53362 [offerPrice99Diff] => 12 [bidPrice99Lv1] => 53312 [bidPrice99Lv1Diff] => 12 [offerPrice99Lv1] => 53362 [offerPrice99Lv1Diff] => 12 [bidPrice99Lv2] => 53307 [bidPrice99Lv2Diff] => 12 [offerPrice99Lv2] => 53367 [offerPrice99Lv2Diff] => 12 [bidPrice99Lv3] => 53317 [bidPrice99Lv3Diff] => 12 [offerPrice99Lv3] => 53357 [offerPrice99Lv3Diff] => 12 [bidPrice96] => 51435 [bidPrice96Diff] => 12 [offerPrice96] => 51490 [offerPrice96Diff] => 12 [bidPrice96Lv1] => 51435 [bidPrice96Lv1Diff] => 12 [offerPrice96Lv1] => 51490 [offerPrice96Lv1Diff] => 12 [bidPrice96Lv2] => 51430 [bidPrice96Lv2Diff] => 12 [offerPrice96Lv2] => 51495 [offerPrice96Lv2Diff] => 12 [bidPrice96Lv3] => 51420 [bidPrice96Lv3Diff] => 12 [offerPrice96Lv3] => 51485 [offerPrice96Lv3Diff] => 12 [bidCentralPrice96] => 51150 [bidCentralPrice96Diff] => 0 [offerCentralPrice96] => 51250 [offerCentralPrice96Diff] => 0 [usdBuy] => 32.518 [usdBuyDiff] => 0 [usdSell] => 32.548 [usdSellDiff] => 0 [AUXBuy] => 3348.11 [AUXBuyDiff] => 0 [AUXSell] => 3348.29 [AUXSellDiff] => 0 [statusSystem] => 1 )