Plot.plot({
marks: [
Plot.lineY(frcb, Plot.normalizeY("first", {x: "Date", y: "Close"})),
Plot.lineY(pacw, Plot.normalizeY("first", {x: "Date", y: "Close"})),
Plot.lineY(wal, Plot.normalizeY("first", {x: "Date", y: "Close"})),
Plot.lineY(zion, Plot.normalizeY("first", {x: "Date", y: "Close"})),
]
})